diff --git a/day-23/input.txt b/day-23/input.txt
new file mode 100644
index 0000000..ed21170
--- /dev/null
+++ b/day-23/input.txt
@@ -0,0 +1,3380 @@
+qk-cr
+xp-qj
+tt-ub
+po-nu
+te-cg
+en-uc
+mc-jp
+gl-oq
+xb-rr
+id-by
+xp-nj
+fi-yy
+aj-cr
+xk-oi
+bs-nb
+dj-at
+gr-ng
+wz-pe
+ra-ju
+ru-ey
+ur-qa
+oz-fe
+kj-vn
+us-dm
+gj-jg
+nq-se
+vy-kv
+li-yd
+do-tn
+vb-xy
+za-gb
+it-jh
+sw-fg
+hl-fo
+jj-ce
+fy-sn
+ol-xl
+kr-ef
+ux-ta
+qw-ry
+am-ny
+xh-td
+vn-lm
+hc-re
+iy-ki
+sf-ej
+lz-zc
+ye-tj
+st-na
+nb-pm
+ns-ww
+xc-yv
+ay-je
+pl-er
+zq-ww
+wk-wm
+iy-ua
+qa-mf
+up-qg
+yw-yu
+pt-tf
+rz-va
+ti-fc
+op-qu
+fq-hm
+ka-vr
+nc-fb
+uy-ma
+kp-vf
+cy-jn
+aq-lh
+ct-zn
+dp-pp
+ir-hr
+pa-ri
+rr-zq
+dl-oa
+xs-mb
+mu-jg
+oi-no
+is-mw
+hj-aq
+nt-qu
+io-tn
+fh-ef
+gk-wx
+ly-bn
+at-vo
+hq-og
+bi-xl
+az-gv
+xe-ot
+fc-pj
+lg-le
+ji-eo
+hn-gq
+xa-oa
+lq-jm
+hs-uq
+yc-mu
+os-pe
+fd-oh
+id-cx
+gu-km
+hc-qs
+ao-tf
+nd-gc
+ei-fm
+dg-yw
+he-tj
+bj-wx
+kw-cg
+ki-ya
+dm-qr
+br-ko
+ah-qn
+qc-he
+fo-in
+yc-hk
+cx-ct
+po-kl
+ir-ek
+nf-fl
+xj-gy
+dn-zi
+ip-px
+ka-st
+dq-dy
+ub-yq
+yw-jh
+ej-gv
+kv-sy
+tm-so
+ti-mx
+de-te
+fc-kt
+bb-zs
+qy-fs
+yu-it
+ha-qz
+fr-kj
+uo-gg
+zc-bp
+wg-tt
+pl-mf
+kh-nq
+if-kj
+ey-ku
+mc-yq
+yh-bu
+xf-gv
+te-nc
+hs-qd
+in-yp
+wi-zu
+hf-em
+ku-ud
+ca-ba
+rk-xj
+vx-ye
+eg-sy
+co-ec
+mc-wg
+wi-kg
+xz-wt
+mu-xz
+rp-ww
+jm-at
+ug-eb
+qz-jo
+dj-sj
+bb-gl
+hc-on
+dj-lq
+qj-ml
+dx-pg
+vb-wh
+tl-ub
+ke-ek
+vo-fz
+ee-of
+zs-oh
+tp-yk
+ak-yj
+kj-yy
+sd-du
+fa-zg
+nu-mb
+bv-mq
+zb-gb
+oi-lf
+qp-xo
+mq-se
+lo-kp
+gy-rp
+ac-sl
+ly-yd
+gg-fo
+ya-ou
+fz-jm
+bt-ri
+we-nb
+je-ya
+pm-gb
+ei-nz
+kc-rx
+yn-ww
+pb-nj
+cy-lm
+kj-iz
+gk-po
+up-vf
+hq-zh
+lc-cx
+lr-qt
+pr-pm
+hm-mz
+ww-ht
+qn-uw
+qq-ib
+aa-oh
+le-xa
+mm-or
+oz-fa
+or-qg
+cv-kz
+op-fg
+cp-gw
+ke-jj
+ew-vc
+al-qm
+eg-zf
+ec-qu
+em-bh
+ig-dy
+ky-ql
+ab-ld
+cj-ld
+sd-ub
+ta-nr
+xm-pv
+wk-fb
+ka-vu
+xa-fq
+ji-ra
+yj-pu
+nt-fg
+mo-ay
+ef-ie
+ou-pq
+lr-tz
+yv-vp
+ja-ha
+bz-js
+kg-ld
+ec-nt
+ri-mi
+rz-pm
+yc-xz
+as-js
+ez-el
+ia-aq
+cp-wz
+ro-us
+vl-pg
+ud-lu
+kd-ho
+qn-cj
+ar-po
+qj-nj
+ee-qc
+ui-dh
+ps-tp
+hg-ux
+pl-gw
+dp-dj
+jg-bd
+ek-hr
+nc-mv
+cc-jj
+ca-nh
+ly-mq
+vs-ka
+qy-qc
+rd-lm
+rz-uk
+ox-dn
+id-sn
+lf-sy
+tz-xu
+yd-gv
+hq-qu
+ay-yj
+es-ru
+cp-pd
+tb-na
+hn-kp
+gd-dx
+fx-sr
+pj-lk
+hd-ii
+jz-wc
+yy-qh
+gv-uy
+pd-ur
+yt-of
+ff-ij
+ui-ff
+bj-dz
+ig-de
+gl-so
+ac-ei
+lr-ng
+wh-tp
+sx-yh
+uk-ka
+vy-do
+ys-wz
+ua-mo
+rl-dw
+vx-ij
+ra-oy
+ly-li
+gf-eb
+bv-xv
+di-ms
+vs-ym
+yg-ps
+te-dy
+og-sz
+xo-yf
+jq-ze
+gc-gr
+rx-xc
+cu-en
+ry-es
+np-nc
+ok-ai
+gm-qr
+rr-yn
+kv-xq
+bn-uy
+zi-xo
+ab-ah
+jq-yk
+pz-fb
+vz-uk
+uz-zn
+dl-xa
+am-wk
+ke-bm
+wl-fb
+io-xy
+yj-ws
+bs-fx
+op-cv
+mb-jm
+zc-cg
+xy-qz
+wa-by
+ky-rs
+af-yu
+ly-jp
+yf-kl
+ko-qo
+dw-ry
+gv-ma
+ws-je
+zn-hl
+af-ku
+gi-tp
+pt-gd
+fz-dj
+rd-fr
+ju-td
+oi-ex
+qt-ng
+do-oi
+ia-nd
+qr-lv
+gs-kz
+hz-ns
+gb-sr
+hh-yh
+hw-zf
+oz-is
+gs-dr
+cr-px
+oc-vn
+bp-cg
+mb-pp
+ib-hd
+bq-io
+ou-ak
+hf-ce
+qk-fm
+np-wm
+pt-sa
+kr-fh
+ze-tu
+qg-lo
+zf-hl
+gq-pc
+ll-xm
+lr-ln
+tn-hn
+dh-xj
+ue-vu
+eg-as
+xf-ej
+up-gq
+by-zn
+zj-ba
+df-mr
+lv-ez
+wo-lg
+qe-hs
+hk-bd
+rv-kg
+ml-ku
+dj-ny
+pc-kp
+qk-jf
+em-oq
+jm-vo
+ew-jy
+cz-pm
+cn-ex
+gf-ho
+la-ma
+kd-xh
+yi-sy
+xv-qb
+pq-jd
+fi-kj
+os-pl
+cv-nh
+ok-bb
+eq-xl
+gc-qt
+uh-lb
+aj-xa
+jj-uh
+rh-na
+re-sm
+qk-sl
+pj-xm
+am-hv
+eo-iu
+kd-ug
+hm-dl
+wv-jg
+hj-qz
+ec-hq
+pm-bs
+vc-is
+qa-uj
+sz-nt
+ou-mo
+lb-hk
+mt-yi
+lk-kt
+mb-lq
+qf-wa
+am-wm
+ib-fs
+bu-ds
+ge-oa
+es-hh
+qz-sf
+kz-ba
+nb-rz
+qo-ta
+pu-je
+lu-ml
+fz-at
+cv-it
+op-zh
+lk-hj
+ry-rb
+qc-fs
+vo-nu
+tg-sl
+fy-bc
+fm-gx
+ys-cp
+ys-os
+ke-hr
+li-bn
+kr-sa
+du-eq
+ak-iy
+gr-ia
+yf-dn
+qe-cq
+kv-oi
+xs-vo
+cq-ag
+aa-tq
+ha-wf
+te-zc
+br-wx
+sr-xp
+da-qf
+fl-vc
+ud-lt
+ai-so
+ma-bn
+fg-ec
+oc-rd
+bm-hr
+lb-ke
+nf-vc
+wl-hv
+hj-io
+ox-xo
+mm-up
+bf-rb
+xy-wh
+gi-jq
+gw-ur
+mb-dp
+tr-iu
+by-sn
+dg-nh
+te-kw
+am-fa
+cp-qa
+rs-jq
+lo-vf
+ru-ku
+qs-rp
+cx-by
+uz-bc
+mo-yj
+hm-tr
+pg-fr
+fe-vc
+hs-ri
+il-kg
+ya-nb
+ol-gq
+ey-qj
+uh-hr
+al-qb
+wh-ja
+lk-mx
+al-to
+ru-kf
+hi-gx
+ir-ql
+gb-rw
+lx-nc
+hn-pc
+mc-ub
+yw-gs
+ml-yz
+yt-gi
+dp-fz
+ds-hh
+ec-zh
+wx-pz
+gc-lr
+le-tr
+tr-fq
+uc-lk
+lv-nk
+eg-js
+pa-uq
+gy-ip
+ie-gd
+tt-ol
+mv-np
+sz-zh
+pr-kj
+uh-ke
+tm-oq
+tj-ff
+bm-jj
+qj-kf
+xp-ru
+da-ri
+bm-bh
+ud-xp
+mz-ye
+ih-no
+ps-sh
+uy-xf
+oc-if
+cy-hn
+ex-ar
+sa-ef
+bz-zf
+ar-ox
+zb-pm
+qs-lw
+xs-sj
+ak-ay
+eb-xh
+ug-eo
+gd-ef
+ze-rs
+wz-gw
+vl-iv
+ih-oi
+rw-zb
+ef-iv
+nf-fe
+al-bv
+ms-jd
+hi-px
+sj-jm
+cn-yf
+bz-gg
+po-ox
+eo-xh
+qg-jn
+bh-ek
+da-pa
+qe-qd
+rp-ht
+ei-yg
+uz-lc
+hd-fs
+te-dq
+ps-gi
+oj-hd
+ln-aq
+it-yw
+zc-ig
+ya-pu
+vz-vs
+ao-ef
+ez-gz
+rd-fi
+tm-tq
+ol-sd
+px-nz
+rr-xj
+kl-sn
+dr-ba
+sh-rs
+uh-ot
+mw-bz
+cc-bv
+tr-dl
+hi-ac
+kz-dr
+gs-zj
+ky-yk
+pl-ds
+bs-sr
+pp-lq
+xz-jg
+bu-be
+mi-pa
+ut-di
+ry-sx
+fs-oj
+fx-ju
+se-rc
+tu-rs
+fa-fl
+ll-st
+up-or
+ou-ua
+oh-wo
+fa-nf
+mt-sy
+vn-if
+wf-bq
+wl-jt
+oq-tq
+da-bt
+bp-lz
+tl-iw
+vg-el
+dq-zc
+co-nt
+df-zg
+pb-lt
+tw-wo
+ar-gk
+ca-jh
+he-ij
+qi-cq
+us-yl
+zg-nf
+mi-hp
+fl-is
+ok-mc
+ha-io
+px-fd
+kg-ah
+dw-qw
+yd-xf
+tv-ux
+fm-sl
+jh-dg
+ce-bh
+ei-fd
+je-iy
+ff-ms
+sk-kw
+pj-pv
+sz-qu
+re-uw
+wo-oq
+un-cr
+df-mw
+st-tb
+wf-qz
+lg-ge
+dr-dg
+en-xm
+rb-sx
+lj-fy
+al-nq
+no-yi
+pz-yz
+jq-tu
+nh-jh
+vb-ja
+at-xs
+rx-qs
+sj-fz
+rk-ht
+dw-es
+cf-hv
+yn-xb
+pc-up
+fz-bt
+su-cj
+rh-ll
+em-ir
+dq-nw
+ba-cv
+lu-ey
+fc-om
+cu-lr
+hm-xa
+gy-ht
+xo-dn
+lf-do
+jg-yc
+eq-yq
+we-zb
+ut-jo
+ej-az
+nc-wm
+co-qu
+bt-qe
+zj-jh
+om-pv
+sw-op
+px-sl
+de-lz
+ax-sq
+yj-ng
+np-jt
+nb-fx
+jy-oz
+tv-pz
+yi-xq
+wf-ja
+yy-ja
+yq-sd
+wl-am
+sz-ec
+tg-cr
+dn-gk
+iu-xe
+nu-dj
+ui-ij
+eb-ho
+yd-jp
+zg-oz
+sn-wa
+uc-om
+ff-km
+mi-ag
+bc-by
+mc-wd
+ta-wx
+zf-gg
+uh-bm
+tj-ms
+hp-ag
+cf-np
+nq-cx
+eq-ol
+ej-bn
+rx-vp
+td-ra
+ay-pu
+qr-el
+pa-qi
+gv-la
+dm-lv
+be-ds
+yf-ex
+mf-er
+lv-el
+hi-nz
+ay-fg
+eg-gd
+og-zh
+mr-zg
+zg-fe
+px-qk
+lf-no
+hp-pa
+il-sm
+uo-fo
+tu-sh
+yq-wg
+la-yd
+sy-oi
+hf-lb
+nt-og
+li-fl
+bb-tq
+fx-rw
+ns-rk
+zx-zu
+ai-tm
+vu-tb
+ih-kv
+qs-zr
+cj-re
+bd-mu
+fg-og
+gf-zs
+fq-dl
+nr-tv
+as-fo
+nr-wx
+pb-ud
+bi-kj
+wx-ux
+fq-mz
+xa-in
+hj-ja
+ii-qy
+po-xo
+zn-wa
+ui-ut
+uz-bj
+hf-ot
+zf-js
+gd-pg
+zc-de
+ue-ka
+tx-bn
+rs-ql
+xz-km
+ht-pt
+fs-zx
+sl-hi
+wt-im
+ft-sa
+as-hl
+ax-sw
+vr-vu
+rc-qm
+bb-wo
+jz-lz
+mi-hs
+xq-vy
+gx-tg
+ya-ua
+na-ka
+qm-mq
+mc-ol
+kg-jf
+gj-im
+oz-vc
+pz-ko
+dw-be
+sj-vo
+tb-vz
+pr-fr
+yv-zr
+vy-no
+ux-br
+gz-ro
+mo-ak
+hx-xk
+ph-ja
+ri-qd
+lv-gm
+mb-fz
+mw-fl
+td-ux
+pj-zp
+oy-gf
+ak-sf
+kc-pi
+ew-mr
+ze-tx
+rv-wt
+mo-ya
+qc-hd
+ml-ud
+nk-kt
+iw-du
+qn-kg
+cf-jt
+jd-vh
+gz-yl
+ra-eb
+nw-te
+qd-hp
+bv-an
+wl-mv
+wm-hv
+uz-qf
+ly-ma
+ee-ii
+vz-ll
+cp-pl
+rc-zb
+vu-vs
+st-uk
+zi-yf
+nj-lt
+sq-sw
+yd-az
+an-se
+wc-sj
+or-lo
+vn-lh
+bz-uo
+so-aa
+rl-pp
+jt-fb
+rb-be
+vp-zr
+pb-kf
+xk-kv
+zs-ok
+qe-uq
+ln-xu
+qg-tu
+ys-pd
+td-jl
+lr-ia
+yp-fn
+ws-ki
+wc-vo
+xc-hc
+sx-ta
+aq-ng
+rh-ym
+kp-tz
+ol-wg
+tg-fd
+va-cz
+zq-rk
+ax-ec
+hm-lg
+ng-tz
+yi-dz
+fe-qj
+vn-pr
+fq-ge
+qf-zn
+hl-eg
+zx-of
+eg-fo
+af-ud
+vr-ue
+gi-yg
+nf-jy
+ie-iv
+ro-gm
+tn-mm
+xz-bd
+uo-wm
+vh-pq
+fg-sz
+iz-yy
+xp-pb
+cz-gb
+ds-rl
+wd-tt
+rk-xb
+or-jn
+sq-sz
+ao-sa
+fa-vc
+ya-yj
+ur-vs
+pu-iy
+cg-sk
+dp-wc
+jz-cg
+ps-ze
+ps-yk
+yq-tt
+dp-lt
+vv-lh
+fg-qu
+rp-yn
+ey-ml
+jj-ir
+ge-aj
+vr-ll
+mz-ge
+lm-fi
+vs-na
+xu-nd
+vb-ha
+lz-ig
+yz-tv
+ju-ho
+if-iz
+mt-oi
+om-en
+uh-ek
+ki-mo
+al-rc
+jo-xy
+xb-ip
+jj-ek
+ie-tf
+vx-jd
+qe-ag
+rc-an
+kl-ar
+uz-fy
+dm-el
+yg-tu
+jy-df
+tz-aq
+sh-tx
+ll-ym
+vh-ff
+vr-ym
+uq-qi
+fz-nu
+eg-fn
+bh-iv
+lh-az
+sj-at
+lc-sn
+tz-lh
+cu-fc
+zp-pv
+dl-of
+nu-jm
+ut-vx
+fr-oc
+by-ct
+pd-pe
+bp-jz
+pi-vp
+ig-nw
+uy-ej
+nz-ac
+vc-df
+hp-cq
+bf-yh
+bp-qi
+xx-qs
+qp-gk
+xc-xx
+yi-xk
+gs-ba
+em-jj
+zg-vc
+kr-vl
+xj-ww
+kg-ab
+dr-cv
+kr-iv
+ef-pg
+ny-np
+nj-af
+xj-ip
+ip-ns
+vf-or
+gd-vl
+up-lo
+mo-ws
+ca-dg
+vx-vh
+oz-yw
+id-wa
+ez-qr
+qh-rd
+xa-tr
+bc-wa
+bi-vn
+kp-or
+st-vs
+bc-id
+cr-nz
+le-dl
+qd-ag
+di-mt
+li-jp
+zf-fo
+pe-gw
+sx-rl
+id-lc
+im-gu
+fz-wc
+gi-tu
+qa-er
+wi-cj
+tv-qo
+mf-ys
+ja-yx
+lq-sj
+xl-wd
+xb-ht
+bn-wp
+dy-nw
+bi-pr
+zj-ca
+be-df
+rc-nq
+pb-af
+dx-vl
+kr-gd
+gy-dh
+du-yq
+il-wi
+ou-ws
+nk-gz
+yp-gg
+qz-yx
+ms-ui
+vb-ph
+vb-yx
+kr-dx
+bd-im
+ce-ke
+ww-ip
+hp-bt
+nd-gr
+pv-lk
+jf-wi
+so-zs
+pq-ye
+tn-or
+qh-if
+pb-ey
+uo-zf
+gg-eg
+ah-re
+kw-de
+kf-xp
+ye-he
+ux-ko
+xj-yn
+gu-rv
+cp-uj
+zg-mw
+yh-qw
+vv-ng
+ti-xm
+ys-uc
+nb-gb
+ax-sz
+wf-jo
+yy-pr
+bu-sx
+fp-lv
+sl-fd
+io-wh
+gz-fp
+tj-di
+fe-jy
+ti-lk
+qo-wx
+sn-qf
+ue-rh
+gl-oh
+lf-fy
+xe-aj
+bc-ct
+uy-la
+yn-ip
+yu-gs
+ok-tw
+lb-ot
+qq-qc
+el-ro
+rw-cz
+fp-qr
+ih-hx
+ay-sf
+rx-xx
+om-pj
+zp-ar
+mm-rx
+cu-lk
+fm-fd
+yc-rv
+ub-eq
+vz-ym
+vo-tv
+vy-oi
+ih-xk
+zg-is
+bt-qd
+zf-fn
+tj-ui
+di-vh
+sq-qu
+rk-hf
+tm-aa
+dy-cg
+px-ac
+un-gx
+ac-gx
+lc-wa
+os-pd
+lw-ft
+va-fx
+kv-yi
+fi-if
+kz-yu
+ud-qj
+ac-cr
+dh-ns
+qw-ds
+al-kh
+gf-td
+qf-by
+we-cz
+ps-ij
+nk-yl
+be-es
+hg-fo
+ru-ml
+sy-ih
+qg-gq
+jp-az
+rz-za
+ek-em
+pc-tn
+pd-wz
+fm-ac
+tp-tx
+qp-dn
+wi-re
+za-rw
+hm-ge
+cv-yw
+lx-jt
+tn-cy
+wt-yc
+fp-nk
+sh-gi
+dh-rk
+df-fl
+qn-ab
+bb-tm
+gm-dz
+xk-qu
+ge-tr
+an-to
+wc-xs
+iv-gd
+zg-fl
+vp-hc
+pq-gx
+qo-dz
+qr-gz
+wc-dj
+jt-mv
+pp-at
+ue-vz
+iv-ao
+do-xq
+ny-jt
+ih-yi
+xe-dl
+bm-zr
+yy-yl
+ax-hq
+be-rl
+xq-lf
+vs-uk
+ug-xh
+ig-jz
+xe-xa
+ly-gv
+jt-am
+tb-rh
+va-sr
+dq-bp
+uy-wp
+xo-ar
+ek-hf
+rb-hh
+fs-ii
+gv-vl
+zh-sq
+id-zn
+qe-ri
+ie-ao
+aa-wo
+ka-ym
+xc-zr
+ub-iw
+mt-no
+du-mc
+tb-ka
+iv-pg
+ds-dw
+fe-mr
+zc-nw
+vh-tj
+tm-tw
+tq-ai
+gz-gm
+dl-rh
+bs-zb
+iu-le
+dr-it
+tf-kr
+hr-hf
+fy-cx
+ws-sf
+xo-ex
+dq-kw
+ug-ji
+pq-vx
+gg-as
+bp-sk
+po-zi
+rd-yy
+ug-oy
+gg-in
+ha-xy
+ac-ba
+fa-mw
+yh-rb
+gl-aa
+lu-ru
+cn-ar
+nt-xo
+po-qp
+op-sq
+qd-mi
+mb-dj
+dh-yn
+qu-ax
+ir-bh
+rh-vu
+oa-iu
+qf-lj
+ug-ho
+mr-nf
+zx-ib
+js-gg
+qw-rb
+at-dp
+wl-lx
+il-cj
+di-on
+zh-nj
+tt-du
+za-pm
+fd-gx
+ah-uw
+ff-jd
+vh-ij
+sh-xc
+in-zf
+mi-bt
+cr-hi
+hl-gg
+he-jd
+ft-rx
+bu-qw
+ha-hj
+kl-gk
+hv-mv
+bn-az
+oi-hx
+wh-ph
+sk-yp
+xy-hj
+ww-rk
+bj-pz
+fh-dx
+ti-zp
+nh-kz
+jp-gv
+ur-uj
+ns-ht
+jl-ra
+zh-nt
+cj-jf
+zp-xm
+ys-uj
+xb-ns
+ej-li
+cj-ah
+yp-eg
+fb-lx
+cy-or
+zu-ii
+yc-wv
+ab-jf
+he-vx
+rc-kh
+ih-zj
+qy-ib
+lr-lh
+ln-gc
+cj-sm
+rz-bs
+rz-rw
+ek-ot
+mi-cq
+bb-oh
+az-ly
+sj-mb
+fa-df
+nq-cc
+iy-ay
+vh-ui
+ll-vs
+rl-ry
+bn-gv
+nk-vg
+qm-qb
+pv-ti
+jn-pc
+hg-wx
+kf-ml
+ym-vu
+yz-ux
+qg-kp
+qu-sw
+tt-xl
+wz-wp
+ba-jh
+bu-es
+xx-pi
+gj-gu
+ej-yd
+pp-gg
+kf-af
+jn-kp
+ps-tu
+wk-hv
+np-wl
+to-xv
+yc-im
+ud-kf
+ke-ot
+jg-km
+if-fr
+km-wt
+iu-mz
+mu-rv
+iu-fq
+lw-pi
+fb-am
+hd-el
+fh-ao
+re-qn
+ah-sm
+fy-lc
+bm-ld
+wt-wv
+fs-qq
+bh-hr
+hv-np
+de-cg
+ok-aa
+no-xk
+we-pm
+fr-vn
+of-fs
+rk-rp
+uo-as
+rv-jg
+ay-ua
+kw-nw
+wv-gj
+vv-qt
+ek-lb
+lx-wk
+qg-tn
+jq-ql
+ce-ek
+jn-tn
+fi-oc
+sy-xk
+rh-vr
+pp-wc
+sh-ze
+qn-su
+tg-fm
+qe-hp
+vf-cy
+yp-hl
+ao-gd
+jn-up
+hq-mb
+an-al
+kd-ju
+ig-sk
+qb-mq
+no-kv
+ri-uq
+sk-dq
+fc-uc
+tg-ei
+ih-vy
+qq-yt
+zh-fg
+km-im
+ax-zh
+co-fg
+of-qq
+ij-ut
+dm-tw
+pz-ta
+wd-iw
+qm-nq
+vh-he
+mx-wg
+lj-bc
+wp-ma
+cy-pc
+jf-qn
+xo-kl
+es-yh
+vp-on
+bj-qo
+lv-us
+xz-wv
+pv-uc
+pi-qs
+mw-vc
+vg-ek
+ox-cn
+lm-kj
+rz-fx
+nr-ko
+jy-fl
+eb-un
+hf-ke
+rs-yg
+ra-ug
+qm-se
+pv-fc
+az-li
+gr-tq
+bi-iz
+rd-vn
+vu-ll
+ia-ln
+dz-wx
+op-sz
+eo-eb
+cp-er
+qf-bc
+vl-tf
+zu-oj
+za-nb
+gq-jn
+kf-ey
+gz-vg
+ge-le
+qm-to
+ng-ln
+tb-vr
+st-ym
+at-lq
+az-la
+uz-id
+bf-es
+lt-lu
+ug-wv
+bu-vy
+va-zb
+ak-ki
+nb-cz
+ol-wd
+px-ei
+mz-xa
+wx-tv
+yl-dm
+nf-mw
+mm-lo
+bu-dw
+tw-bb
+kt-zp
+gq-tn
+jt-wk
+it-ca
+io-yx
+su-ld
+ho-xh
+xu-vv
+aj-fq
+lj-lc
+bb-so
+be-sq
+kt-pj
+ki-sf
+kl-dn
+dx-sa
+tw-gl
+qb-an
+zi-kl
+pa-qo
+mi-qi
+wo-so
+ms-ij
+pe-cp
+fx-cz
+lt-qj
+gd-za
+pj-ti
+fe-fa
+it-gs
+mv-ny
+gu-bd
+mr-xs
+yt-fs
+gw-os
+ti-uc
+ao-dx
+ye-jd
+so-oh
+dy-jz
+gi-ky
+mc-tl
+tq-tw
+hc-pi
+qc-oj
+pu-sf
+st-wt
+nt-op
+vg-qr
+qz-bq
+yi-lf
+el-gm
+us-ez
+lj-zn
+aa-oq
+lo-pc
+kc-on
+ir-lb
+kf-lu
+ws-ua
+ab-ge
+oh-ai
+sm-ld
+zs-wo
+uh-bh
+vp-xx
+di-vx
+fq-lg
+ew-df
+ej-wp
+rd-if
+gm-yl
+ng-ia
+zh-sw
+ge-xa
+qi-ag
+ys-pe
+xk-xq
+yq-xl
+zs-ai
+gk-ex
+gu-jg
+or-hn
+ny-wl
+qp-hz
+hm-aj
+fs-ra
+gq-cy
+kt-uc
+xe-lg
+wf-xy
+ib-yt
+vv-xh
+an-kh
+jf-il
+dn-cn
+cr-gx
+ok-oq
+sa-pg
+gc-tz
+lx-cf
+np-fb
+xz-im
+bs-we
+dq-cg
+tl-wd
+gf-kd
+rv-km
+jm-pp
+hh-bf
+sl-hr
+tl-yq
+zq-ip
+un-sl
+ma-jp
+ca-kz
+ko-it
+xp-af
+ze-ky
+lw-vp
+tf-fh
+we-za
+ie-kr
+fn-in
+ll-ue
+zu-ib
+rk-yn
+km-hk
+uc-xm
+we-rw
+dn-hz
+qi-bt
+ki-yj
+zx-yt
+sl-cr
+io-vb
+va-pm
+vf-mm
+gz-lv
+br-qo
+ya-ay
+jh-cv
+wk-np
+bi-rd
+uk-vu
+fd-hi
+tx-jq
+wf-hj
+ew-fa
+ld-uw
+pq-ms
+tw-so
+rk-rr
+dx-tf
+uh-em
+gw-mf
+ip-rp
+ry-be
+ef-dx
+zn-lc
+rr-ww
+qk-un
+pb-qj
+mu-gu
+il-uw
+bq-jo
+bd-km
+ie-sa
+gf-jl
+hl-uo
+pm-rw
+kd-gz
+mu-im
+dy-sk
+vl-pt
+wh-hj
+we-sr
+lz-dq
+zr-rx
+em-ce
+rw-bs
+zr-on
+ql-tp
+hd-qq
+im-jg
+ub-wd
+vp-qs
+lq-nu
+iy-mo
+nj-ey
+ot-em
+kl-cn
+cq-uq
+np-id
+uw-jf
+iz-tq
+oh-ok
+tj-ij
+uk-vr
+ft-rw
+cq-hh
+zx-ee
+wa-fy
+ce-qy
+mv-wk
+hi-qk
+uy-li
+zj-dg
+dw-rb
+lf-vy
+cp-os
+bu-ry
+ha-ph
+on-rx
+pl-wz
+qc-zx
+ag-hs
+oj-ib
+ar-qp
+us-gz
+mf-zx
+ca-gs
+bh-lb
+dn-ex
+un-px
+os-va
+gl-tq
+vu-us
+pp-xs
+ta-br
+gu-hk
+tl-xl
+ji-xh
+ky-tp
+fh-pt
+qs-yv
+ai-oq
+fh-ie
+ux-nf
+se-cc
+zq-gy
+ft-xc
+ey-ud
+da-mi
+nk-el
+iy-sf
+fi-fr
+rd-kj
+he-ui
+mx-zp
+qn-sm
+qe-pa
+ld-jf
+nw-de
+gx-qk
+un-fm
+do-mt
+gs-cv
+is-fe
+ym-ue
+iz-rd
+iy-ws
+xl-wg
+qi-ri
+em-hr
+sn-uz
+qh-vn
+pa-ag
+tr-oa
+za-va
+xu-yv
+lw-sj
+cx-uz
+it-ba
+zj-nh
+vy-hx
+oy-kd
+iw-eq
+jm-wc
+mt-lf
+kf-nj
+he-pq
+ju-gf
+ip-rk
+yv-xx
+no-do
+oy-ju
+rc-cc
+oz-df
+zc-kw
+dh-ip
+ph-bq
+nj-ku
+ak-ya
+sa-vl
+td-eo
+ao-pt
+nu-at
+re-kg
+gx-nz
+al-mq
+lz-sk
+ef-vl
+eo-gf
+zc-fa
+fi-en
+js-in
+ot-hr
+yt-qc
+ct-lc
+iy-yj
+fn-fo
+ub-du
+cc-kh
+iw-wg
+fx-za
+kt-az
+fi-pr
+wi-rh
+bu-rl
+is-hs
+fb-cf
+da-hp
+xb-gy
+wl-wk
+tl-tt
+uw-sj
+mf-uj
+ei-cr
+wc-lq
+gu-bb
+ku-lu
+ct-uz
+yn-zq
+hw-fn
+at-wc
+bv-kh
+dh-ht
+yg-yk
+xf-ly
+ol-iw
+xb-ww
+tv-dz
+cn-gk
+ko-ta
+pu-jq
+wz-mf
+cf-wk
+tz-vv
+tu-ql
+yl-vg
+pe-pl
+yk-ze
+pe-qa
+ro-lv
+ey-xp
+dy-bp
+vu-na
+zg-wa
+va-rw
+gb-bs
+ei-un
+cr-fd
+uc-mx
+cf-ny
+nb-zb
+mz-xe
+oc-ct
+cr-fm
+fm-hi
+mv-wm
+tx-yk
+sk-de
+hn-qg
+yq-iw
+tg-nz
+ms-he
+at-gs
+er-wz
+kj-oc
+ab-uw
+oj-ii
+px-tg
+ki-ua
+xf-ph
+mx-pj
+wv-gu
+ye-di
+ye-ff
+kt-pv
+lm-oc
+ud-lc
+tu-ef
+op-mi
+zg-jy
+qp-ox
+ex-zi
+oq-bb
+hc-yv
+bf-ds
+xj-xb
+gz-dm
+yz-ta
+sr-rz
+nq-xv
+rh-uk
+ze-xz
+js-ey
+gy-ns
+du-ji
+je-mo
+dp-xs
+st-ia
+ky-rc
+dj-vo
+gw-pd
+or-gq
+ah-su
+qs-on
+yd-bn
+lr-vv
+yn-ht
+rr-dh
+aq-gr
+to-bv
+hw-yp
+kw-dy
+ux-pz
+ee-yt
+qh-fi
+we-gb
+nr-yz
+ay-ki
+co-sz
+xf-li
+bj-ko
+yh-dw
+ug-td
+wi-ah
+df-fe
+ib-qc
+ja-qz
+nt-hq
+dj-jm
+dp-nu
+oq-zs
+xs-lq
+sm-wi
+ac-un
+rr-ip
+pe-mf
+df-nf
+fa-mr
+nk-qr
+rv-bd
+og-ax
+yy-oc
+qq-ee
+lm-fr
+yg-ky
+ir-bm
+ph-bp
+ln-nd
+pt-iv
+sr-cz
+xf-la
+qt-ln
+om-ti
+xj-rp
+yp-js
+og-co
+mr-vc
+vn-yy
+td-eb
+pv-so
+eg-hw
+tj-ut
+cv-dg
+uc-cu
+yj-ou
+ia-qt
+rr-ht
+mf-os
+bf-lx
+sd-tt
+dl-mz
+lh-ia
+lk-om
+gi-ql
+rb-ds
+hc-kc
+ex-qp
+lt-ru
+la-wp
+do-ih
+qp-kl
+vz-wo
+xu-ia
+do-hx
+zs-tm
+ys-qa
+bt-cq
+hp-zf
+tw-zs
+og-sw
+bi-yy
+rk-gy
+ps-ql
+yq-us
+cc-xv
+cq-ri
+at-mb
+ti-kt
+dy-zc
+wc-nu
+hc-zr
+jo-ph
+pd-uj
+jo-vb
+dn-ar
+mv-sz
+ko-yz
+cn-qp
+qf-fy
+wv-bd
+mv-lx
+bp-de
+ub-xl
+id-qf
+bj-ux
+ge-xe
+pr-iz
+fb-wm
+yx-ph
+cx-sn
+xu-qt
+cy-mm
+ru-nw
+se-to
+pa-qd
+yg-ze
+ky-sh
+ew-fl
+vz-rh
+tb-ue
+vf-pc
+yt-oj
+qu-zh
+iy-ou
+vr-vs
+te-sk
+xu-aq
+rz-cz
+hz-cn
+tl-wg
+ys-pl
+ew-zg
+uc-pj
+wt-mu
+ly-la
+is-ew
+dg-gs
+xc-pi
+ww-su
+ca-bc
+bs-fc
+by-lj
+xl-sd
+zb-rz
+oj-zx
+tx-ky
+xf-jp
+do-sy
+pi-rx
+iv-sa
+uw-cj
+mq-to
+uo-hw
+hx-xq
+fd-un
+px-fm
+ld-wi
+nh-vr
+sx-bf
+wm-lx
+wa-uz
+rv-hk
+sw-co
+xv-mq
+bn-la
+pg-kr
+oh-tq
+pd-qt
+du-ol
+gj-yc
+ai-aa
+lu-nj
+ww-gy
+wd-du
+xv-an
+fc-xm
+ro-vg
+eq-tt
+ka-ll
+yz-hg
+zc-jz
+dm-vg
+na-ym
+dy-lz
+dg-it
+sm-tm
+lh-gc
+af-lu
+by-ig
+wv-rv
+pc-mm
+lg-xa
+qw-bf
+wv-km
+wo-tm
+pv-mx
+ah-il
+jp-uy
+du-xl
+tt-iw
+oc-iz
+ra-ho
+ln-gr
+jh-dr
+fg-sq
+po-cn
+qa-os
+ib-of
+ff-di
+cn-xo
+xh-jl
+om-tg
+cg-ig
+cf-wm
+qn-wi
+gj-mu
+rs-tx
+fs-zu
+kc-qs
+ra-xh
+og-sq
+ao-vl
+co-zh
+ag-bt
+qa-wz
+xx-zr
+zx-hd
+gj-km
+qd-uq
+hz-cf
+ln-lh
+jy-mw
+fp-gm
+yn-gy
+hf-ir
+lw-hc
+if-yy
+zu-of
+ma-li
+gm-dm
+cj-ab
+ok-tq
+ur-pe
+oz-nf
+tw-ai
+cu-kt
+ro-nk
+pg-tf
+iw-xl
+uq-mi
+qq-oj
+pt-kr
+vh-ye
+be-sx
+sn-zn
+ki-pi
+qo-nr
+sx-hh
+cx-lj
+hr-lb
+bm-ek
+ll-tb
+bi-fr
+un-nz
+tp-zq
+er-uj
+tw-aa
+to-kh
+su-sm
+pl-ur
+nq-mq
+tn-vf
+og-op
+sm-uw
+ge-wv
+lj-sn
+hk-qq
+ra-eo
+ih-mt
+sf-je
+sa-gd
+vf-ao
+al-se
+yp-uo
+ou-sf
+hf-bh
+by-lc
+sw-nt
+ji-kd
+bz-as
+qj-ru
+lq-vo
+lz-nw
+yz-dz
+lq-dp
+jy-fa
+pl-uj
+es-qw
+yn-xv
+qr-ro
+ct-qf
+ee-oj
+we-rz
+fn-hl
+sa-fh
+xe-tr
+wt-gj
+eo-ho
+sd-tl
+ja-jo
+xb-dh
+uk-ue
+ra-gf
+iw-le
+ui-vx
+mr-oz
+nd-ng
+yf-ar
+gb-va
+jh-yu
+jn-mm
+uk-ll
+rc-bv
+of-qy
+jm-by
+qg-mm
+fq-gy
+ju-xh
+ke-bh
+jn-uy
+ku-lt
+xu-lr
+mc-iw
+pa-cq
+gm-nk
+rs-kf
+qd-cq
+jt-nc
+qy-oj
+nw-cg
+ce-lb
+tb-vs
+am-lx
+xh-oy
+mf-cp
+da-cq
+hs-cq
+hz-yf
+hw-in
+uh-ce
+ri-hp
+es-rb
+vp-xc
+ff-he
+vx-tj
+oc-pr
+xh-gf
+ig-te
+zp-om
+og-qu
+hh-qw
+lj-ct
+fz-xs
+cy-qg
+bf-be
+dm-fp
+qm-kh
+lz-te
+dg-dn
+qk-ac
+tz-ln
+no-xq
+io-qz
+bj-hg
+ms-ye
+bz-in
+zp-en
+ku-qj
+ie-pg
+mu-wv
+ee-zu
+ny-wk
+ql-yg
+fs-ee
+ou-ay
+il-qn
+qa-gw
+lf-hx
+re-il
+pm-fx
+we-va
+fy-rb
+xm-om
+gm-ez
+kp-cy
+sm-jf
+dz-ta
+fd-qk
+ec-sq
+ky-ps
+tr-lg
+ub-ol
+us-nk
+vu-vz
+xq-mt
+aj-mz
+zi-ar
+bi-fi
+lo-jn
+tu-yk
+gc-ia
+tl-cz
+gw-ys
+vb-qz
+lq-kv
+ok-so
+hl-hw
+dx-pt
+mo-pu
+hs-da
+rx-hc
+ft-on
+ah-ld
+uj-wz
+fy-zn
+ht-zq
+yw-ba
+hg-ko
+qm-an
+vg-us
+jf-re
+oi-yi
+qw-rl
+cx-bc
+bp-ig
+if-bi
+pp-nu
+vh-ms
+ws-ak
+lc-qf
+qy-mq
+lx-hv
+hm-xe
+qe-zi
+jy-mr
+qh-pr
+ju-ji
+pq-ut
+sk-jz
+ab-re
+mc-sd
+lr-aq
+xy-ja
+nf-is
+wt-jg
+je-ou
+ps-tx
+ft-pi
+ll-na
+br-nr
+fi-iz
+iz-lm
+er-ys
+de-dr
+yn-ns
+yc-gu
+hr-ce
+wg-ub
+az-xf
+qe-qi
+nh-gs
+tj-pq
+gl-zs
+fx-we
+ub-ec
+tq-so
+nt-ax
+uk-na
+lb-jj
+tm-gl
+qp-zi
+aq-vv
+tf-iv
+aj-oa
+fx-zb
+ys-ur
+la-jp
+td-ji
+mc-tt
+aa-bb
+bj-yz
+cc-qm
+ab-su
+jp-bn
+im-hk
+ma-yd
+dm-nk
+yv-kc
+wh-bq
+is-jy
+vy-xk
+tb-eq
+zr-pi
+an-vx
+mw-fe
+mi-qe
+nr-pz
+le-xe
+qd-jh
+pv-cu
+kd-jl
+gx-ei
+wo-ai
+tg-qk
+up-vh
+lk-fc
+lh-ng
+ox-gk
+ax-fg
+gr-vv
+xx-qb
+xx-on
+bv-nq
+oc-bi
+kp-mm
+ak-je
+re-su
+bz-fo
+ct-id
+ry-kz
+oa-lg
+hw-js
+nd-lr
+zj-yw
+ja-io
+lx-np
+ct-sn
+pz-qo
+as-yp
+as-co
+ir-ke
+vl-fh
+ej-jp
+iu-aj
+qr-us
+tl-du
+zb-za
+jz-de
+hw-bz
+hk-xz
+gi-ze
+js-uo
+yk-rs
+mu-hk
+zu-hd
+mt-ri
+zp-uc
+wx-yz
+su-il
+tx-yg
+rr-rp
+ws-ya
+wh-ha
+rp-zq
+mr-mw
+ya-iy
+hs-hp
+kl-hz
+st-vr
+zi-cn
+ds-yh
+dh-rp
+tz-qt
+eb-ji
+yi-hx
+jq-tp
+td-kd
+ki-pu
+es-sx
+xm-lk
+vf-jn
+ng-gc
+qg-vf
+gi-yk
+mv-cf
+hj-vb
+yg-jq
+pb-qp
+da-qe
+ue-vs
+nw-jz
+bq-ja
+br-yz
+vv-ln
+ha-yx
+ta-hg
+hz-xo
+fe-ew
+lt-ey
+sy-vy
+kz-it
+en-pj
+wi-uw
+kd-rd
+le-aj
+ct-fy
+if-lm
+tx-tu
+bh-jj
+vn-fi
+wd-wg
+fh-bv
+er-os
+hd-of
+gu-wt
+wl-nh
+uw-kg
+ia-vv
+jl-ho
+nz-qk
+pb-ml
+is-df
+qt-lh
+uh-ir
+wp-az
+cu-pj
+wk-nc
+lv-yl
+qj-af
+ex-po
+sh-yk
+ro-ez
+dw-sx
+dp-jm
+hn-jn
+qh-ak
+kd-eo
+ca-yw
+kj-qh
+fp-el
+qi-hp
+bn-xf
+oa-er
+hm-en
+sq-hq
+yv-lw
+ry-bf
+ml-lt
+tu-ky
+lm-qh
+po-yf
+ft-yv
+wp-jp
+ds-sx
+ua-fh
+ag-uq
+im-to
+xf-wp
+bc-zn
+oy-jl
+nz-ka
+mt-hx
+oh-tm
+pl-pd
+rl-hh
+lk-en
+al-je
+fn-gg
+eo-ju
+gl-ai
+oy-eb
+pb-ru
+lu-qj
+ho-oy
+bm-hf
+tp-sh
+oz-mw
+ac-tg
+sr-pm
+us-el
+mb-wc
+bj-tv
+lj-ec
+jf-su
+gr-qt
+gc-aq
+ur-os
+mo-ti
+rl-es
+rc-to
+il-ab
+li-wp
+if-la
+fp-il
+xj-ht
+yx-jo
+ip-ht
+ns-rr
+ue-na
+xv-al
+ya-sf
+gg-hw
+pp-fz
+ky-jq
+yy-fr
+vn-iz
+og-nr
+yw-nh
+ho-qa
+pg-pt
+jo-hj
+ma-ej
+dz-pz
+he-ut
+iw-sd
+vz-st
+kz-zj
+pa-hs
+pr-rd
+lf-xk
+be-yh
+ej-la
+su-uw
+tp-rs
+wm-wl
+im-wv
+ar-hz
+ds-ry
+or-qm
+ff-pq
+ko-wx
+op-co
+ke-am
+nu-sj
+da-qi
+yx-hj
+mu-km
+tb-uk
+ca-cv
+sd-wd
+mx-kt
+nq-an
+tl-ol
+wf-wh
+tr-ro
+pu-ou
+gj-rv
+hd-qy
+se-bv
+nt-sq
+oa-fq
+uy-nb
+gq-kp
+is-cn
+sy-xq
+iu-lg
+ki-je
+qb-cc
+hh-ry
+lo-gq
+vg-gm
+pt-ie
+dx-vb
+vv-nd
+bb-ai
+tr-aj
+pe-gm
+bq-yx
+be-qw
+ec-og
+ax-lz
+tr-mz
+hv-fb
+nw-sk
+qy-ee
+qt-nd
+dm-ez
+hx-sy
+hi-uj
+do-kv
+kl-ex
+ib-aa
+jz-te
+rv-xz
+de-dq
+fh-pg
+mx-en
+fm-lv
+xq-ih
+iu-ge
+vb-wf
+yi-do
+sd-mo
+lg-mz
+ji-gf
+hl-bz
+hq-op
+bc-lc
+wh-qz
+ji-jl
+vo-mb
+ze-ql
+ws-ay
+br-tv
+mc-eq
+io-ph
+kp-up
+se-kh
+ml-af
+pa-bt
+ei-sl
+px-gx
+pr-lm
+ha-bq
+ut-jd
+sq-co
+nw-bp
+td-oy
+eq-sd
+uj-gw
+wa-lj
+br-bj
+la-li
+kw-ig
+ak-ua
+tt-ln
+sr-nd
+xf-ma
+yp-fo
+dr-ca
+ql-tx
+uy-ly
+br-hg
+ql-yk
+yv-rx
+ki-ou
+xy-yx
+eq-wd
+xb-oj
+bd-yc
+hp-uq
+kv-hx
+rl-rb
+jd-ij
+by-uz
+oh-tw
+vp-ft
+kj-ur
+le-mz
+xj-up
+yi-vy
+mq-an
+hi-ei
+js-fn
+zs-tq
+gk-yh
+cx-qf
+hk-jg
+wd-cp
+or-pc
+fn-as
+xx-lw
+us-fp
+ff-ut
+pu-ak
+ie-jd
+bf-rl
+tj-jd
+oq-so
+jl-ju
+ue-st
+ns-xj
+yu-nh
+oz-fl
+yw-kz
+lb-bm
+kf-lt
+bs-cz
+mm-gq
+xp-lt
+ua-yj
+om-cu
+zr-kc
+gc-xu
+uk-ym
+as-hw
+tm-ok
+vx-ff
+gs-jh
+ca-yu
+pi-yv
+it-bz
+dh-zq
+wt-bd
+cu-mx
+gi-rs
+oq-tw
+ny-fb
+kr-ab
+iy-hn
+di-ij
+bq-hj
+zp-fc
+yd-wp
+nb-va
+ka-vz
+en-fc
+dj-pp
+xb-zq
+om-mx
+az-ma
+mr-is
+kc-ft
+sw-hq
+zx-ii
+en-ti
+hk-gj
+yc-km
+cj-kg
+bq-xy
+rs-ps
+il-ld
+jh-kz
+yf-hw
+cc-an
+gv-li
+tf-gd
+bi-qh
+on-lw
+yp-bz
+cv-zj
+sl-nz
+dz-hg
+hr-jj
+vo-dp
+gj-vp
+cc-to
+hn-mm
+ce-ot
+ye-ij
+cy-lo
+uh-tj
+xb-rp
+jm-xs
+ti-cu
+fb-mv
+vg-ez
+yj-je
+lv-vg
+qq-qy
+ww-dh
+cv-yu
+qt-aq
+aj-lg
+wo-gl
+oa-le
+vf-gq
+cz-za
+zi-hz
+dg-yu
+ui-pq
+wm-ny
+qh-fr
+oy-ji
+eq-tl
+gc-vv
+uo-fn
+qw-fn
+ju-ug
+pd-er
+uh-hf
+ue-ii
+co-hq
+un-tg
+le-hm
+we-yx
+ru-nj
+po-dn
+ot-jj
+sz-hq
+yd-kc
+op-ax
+bs-va
+bf-dw
+lw-rx
+vb-bq
+tv-ko
+bv-qm
+ym-lm
+ag-ri
+vz-vr
+nf-ew
+hg-pz
+of-oj
+qn-ld
+sm-ab
+xv-rc
+dr-yw
+he-di
+ah-ms
+ju-eb
+fz-lq
+vy-mt
+da-ag
+ur-er
+gk-xo
+nu-xs
+mx-fc
+qa-pl
+tf-xu
+vh-ut
+ce-bm
+jz-kw
+qc-ii
+zb-cz
+xj-zq
+ua-sf
+yl-fp
+jj-hf
+lr-gr
+ps-jq
+on-pi
+ey-af
+io-wf
+gx-sl
+jt-hv
+jl-eo
+qy-zu
+yl-qr
+xp-lu
+cc-mq
+ye-ut
+wp-gv
+up-cy
+kc-xx
+bs-za
+dm-ro
+tz-nd
+qo-ux
+iu-xa
+kg-sm
+yf-ox
+nr-bj
+ez-nk
+ru-ud
+dp-sj
+je-ua
+nj-ml
+na-vr
+bd-qk
+tg-hi
+kh-xv
+mf-ur
+wl-cf
+hd-yt
+ef-tf
+nb-rw
+da-uq
+gz-el
+ku-kf
+ez-fp
+qb-nq
+ly-wp
+tv-ta
+sw-jy
+hx-no
+du-wg
+zs-aa
+xc-lw
+fq-xe
+as-in
+ws-pu
+sw-ec
+fn-bz
+uy-yd
+ft-xx
+xm-kt
+yl-ro
+na-vz
+zi-ox
+sw-sz
+xs-dj
+ku-no
+ws-gw
+qo-hg
+ph-xy
+ze-tp
+ry-yh
+aq-nd
+vf-hn
+tf-sa
+qo-yz
+vx-ms
+wz-os
+bt-hs
+kz-dg
+ft-hc
+xz-gu
+mx-xm
+tv-hg
+oq-oh
+ot-bh
+eb-jl
+ao-pg
+gy-rr
+bv-qb
+vc-yt
+iu-hm
+nz-fm
+ui-di
+fr-iz
+vp-kc
+ba-yu
+ui-ye
+wm-jt
+sy-no
+fd-ac
+qz-ph
+zf-yp
+ko-dz
+uq-lu
+qq-zu
+na-ra
+nc-ny
+qb-rc
+om-kt
+hz-ex
+yt-ii
+yt-zu
+pd-mf
+wi-su
+vs-rh
+hv-ny
+hm-oa
+ie-vl
+am-cf
+js-fo
+hx-ew
+ft-zr
+xm-cu
+se-xv
+fg-hq
+dl-lg
+qs-xc
+dq-ig
+ud-nj
+oy-pj
+ml-xp
+bu-rb
+fo-hw
+fl-mr
+mw-ew
+kc-lw
+qn-yk
+cg-kv
+sh-yg
+eb-kd
+qi-hs
+eg-uo
+lo-tn
+ld-re
+cf-nc
+fp-vg
+aj-dl
+bc-sn
+lz-kw
+pp-vo
+ms-ut
+br-kw
+oz-ew
+yg-tp
+rr-jg
+ot-ir
+qc-zu
+xk-mt
+zr-lw
+qh-iz
+en-pv
+js-hl
+sh-jq
+wf-yx
+su-kg
+os-uj
+qc-of
+pu-ua
+lf-kv
+zb-sr
+gb-rz
+wl-nc
+qq-ii
+uz-lj
+lb-em
+xu-gr
+hc-xx
+er-gw
+mz-oa
+bi-lm
+jt-xq
+nc-hv
+ok-wo
+ot-bm
+ns-bq
+io-jo
+hv-af
+uj-pe
+ba-nh
+hl-in
+hz-ox
+dy-de
+qi-qd
+ha-qs
+ih-lf
+eo-oy
+kp-tn
+ee-hd
+iv-fh
+ql-sh
+oc-qh
+wt-hk
+ok-gl
+gc-mv
+zn-cx
+lk-zp
+oa-xe
+dr-nh
+uo-in
+el-yl
+to-nq
+za-sr
+yh-rl
+am-nc
+dx-ie
+ka-rh
+bf-bu
+wk-ag
+pb-ku
+fy-id
+wg-sd
+xy-kh
+se-cj
+ii-of
+ei-ee
+jo-ha
+yl-ez
+lj-id
+on-yv
+dz-nr
+ba-dg
+qb-to
+se-qb
+xp-ku
+xz-gj
+ho-td
+ta-bj
+ee-ib
+hn-up
+rv-im
+tz-ia
+ef-pt
+dz-br
+lh-nd
+wd-yq
+pc-qg
+ct-wa
+ng-xu
+br-pz
+fe-fl
+ii-ib
+dr-yu
+pc-em
+ah-jf
+mq-kh
+vu-st
+ox-ex
+hz-po
+fp-ro
+cg-lz
+nr-ux
+pq-ij
+pb-lu
+ce-ir
+ke-em
+zc-sk
+gk-yf
+xc-on
+co-ax
+xk-do
+np-am
+zq-ns
+tx-gi
+zj-yu
+eg-in
+dl-iu
+lx-ny
+lo-gb
+iv-dx
+dw-hh
+dy-dw
+oi-xq
+hh-bu
+it-zj
+fq-le
+qp-yf
+cx-wa
+gr-lh
+gl-hh
+kc-xc
+ej-ly
+zx-qy
+xv-qm
+ox-kl
+ur-cp
+lt-af
+gk-zi
+yc-kw
+jo-wh
+er-pe
+jz-dq
+sx-qw
+nz-fd
+gr-tz
+tb-ym
+ui-jd
+ug-gf
+cu-zp
+di-jd
+yj-sf
+bd-gj
+rp-qr
+vc-jy
+qd-da
+kh-qb
+pr-if
+yx-wh
+jl-ma
+ao-kr
+ox-dq
+yq-ol
+zf-as
+pd-qa
+ez-mu
+nr-hg
+cc-al
+ho-ji
+ph-wf
+rw-sr
+hn-lo
+bt-uq
+wg-eq
+jl-ug
+bp-te
+zx-qq
+dr-zj
+ai-wz
+ds-es
+hi-un
+wf-xl
+fx-gb
diff --git a/day-23/main.c b/day-23/main.c
new file mode 100644
index 0000000..903d26b
--- /dev/null
+++ b/day-23/main.c
@@ -0,0 +1,356 @@
+#include "aoc.h"
+#include <stdlib.h>
+
+typedef struct Node {
+    str label;
+    i32 index;
+} Node;
+
+// Represent edges of graph by an adjacency matrix.
+typedef struct BitMatrix {
+    i32 size;
+    u64 *data;
+} BitMatrix;
+
+typedef DYNAMIC_ARRAY(Node) Nodes;
+
+typedef struct Graph {
+    Nodes nodes;
+    BitMatrix edges;
+} Graph;
+
+typedef struct BitSet {
+    i32 size;
+    i32 array_size;
+    u64 *data;
+} BitSet;
+
+typedef struct BitSetIter {
+    BitSet *bs;
+    i32 u64_index;
+    u64 current_u64;
+} BitSetIter;
+
+static void
+bm_init(Arena *arena, BitMatrix *bm, i32 size) {
+    bm->size = size;
+    isize alloc_size = (bm->size * bm->size + 63) / 64;
+    bm->data = ARENA_ALLOC_ARRAY(arena, u64, alloc_size);
+}
+
+static u8
+bm_at(BitMatrix *bm, i32 row, i32 col) {
+    i32 u64_index = (row * bm->size + col) / 64;
+    i32 bit_index = (row * bm->size + col) % 64;
+    u64 mask = 1ULL << bit_index;
+    return (bm->data[u64_index] & mask) != 0;
+}
+
+static void
+bm_set(BitMatrix *bm, i32 row, i32 col, u8 bit) {
+    i32 u64_index = (row * bm->size + col) / 64;
+    i32 bit_index = (row * bm->size + col) % 64;
+    u64 mask = 1ULL << bit_index;
+    if (bit) {
+        bm->data[u64_index] |= mask;
+    }
+    else {
+        bm->data[u64_index] &= ~mask;
+    }
+}
+
+BitSet make_bitset(Arena *arena, i32 size) {
+    isize array_size = (size + 63) / 64;
+    BitSet set = {
+        .size = size,
+        .array_size = array_size,
+        .data = ARENA_ALLOC_ARRAY(arena, u64, array_size)
+    };
+    return set;
+}
+
+static bool
+bs_empty(BitSet *bs) {
+    for (i32 i = 0; i < (bs->size + 63) / 64; i++) {
+        if (bs->data[i] != 0) {
+            return false;
+        }
+    }
+    return true;
+}
+
+static void
+bs_set(BitSet *bs, i32 index) {
+    i32 u64_index = index / 64;
+    i32 bit_index = index % 64;
+    bs->data[u64_index] |= 1ULL << bit_index;
+}
+
+static void
+bs_clear(BitSet *bs, i32 index) {
+    i32 u64_index = index / 64;
+    i32 bit_index = index % 64;
+    bs->data[u64_index] &= ~(1ULL << bit_index);
+}
+
+static u32
+bs_get(BitSet *bs, i32 index) {
+    i32 u64_index = index / 64;
+    i32 bit_index = index % 64;
+    return (bs->data[u64_index] & (1ULL << bit_index)) != 0;
+}
+
+BitSetIter
+bs_iter(BitSet *bs) {
+    BitSetIter iter = {
+        .bs = bs,
+        .u64_index = -1,
+        .current_u64 = 0,
+    };
+    return iter;
+}
+
+static bool
+bsi_next(BitSetIter *iter, i32 *index) {
+    while (iter->current_u64 == 0) {
+        iter->u64_index++;
+        if (iter->u64_index >= iter->bs->array_size) {
+            return false;
+        }
+        iter->current_u64 = iter->bs->data[iter->u64_index];
+    }
+    i32 bit_index = __builtin_ctzll(iter->current_u64);
+    *index = iter->u64_index * 64 + bit_index;
+    iter->current_u64 &= ~(1ULL << bit_index);
+    return true;
+}
+
+static BitSet
+bs_copy(Arena *arena, BitSet *bs) {
+    BitSet copy = make_bitset(arena, bs->size);
+    memcpy(copy.data, bs->data, bs->array_size * sizeof(bs->data[0]));
+    return copy;
+}
+
+static BitSet
+bs_intersect(Arena *arena, BitSet *a, BitSet *b) {
+    BitSet result = make_bitset(arena, a->size);
+    for (i32 i = 0; i < a->array_size; i++) {
+        result.data[i] = a->data[i] & b->data[i];
+    }
+    return result;
+}
+
+static i32
+bs_count(BitSet *bs) {
+    i32 count = 0;
+    for (i32 i = 0; i < bs->array_size; i++) {
+        count += __builtin_popcountll(bs->data[i]);
+    }
+    return count;
+}
+
+static i32
+cmp_i32(const void *p1, const void *p2) {
+    i32 a = *(i32 *)p1;
+    i32 b = *(i32 *)p2;
+    return a - b;
+}
+
+static inline bool
+graph_connected(Graph *graph, i32 a, i32 b) {
+    bool result = bm_at(&graph->edges, a, b);
+    return result;
+}
+
+static Node *
+graph_get_or_insert(Arena *arena, Graph *graph, str label) {
+    Node *result = NULL;
+    for (isize i = 0; i < graph->nodes.len; i++) {
+        if (str_eq(graph->nodes.data[i].label, label)) {
+            result = &graph->nodes.data[i];
+            break;
+        }
+    }
+    if (!result) {
+        Node node = { .label = label, .index = graph->nodes.len };
+        *push(&graph->nodes, arena) = node;
+        result = &graph->nodes.data[graph->nodes.len - 1];
+    }
+    return result;
+}
+
+static i32
+str_cmp(str a, str b) {
+    i32 res = memcmp(a.data, b.data, MIN(a.len, b.len));
+    if (res == 0) {
+        return a.len - b.len;
+    }
+    else {
+        return res;
+    }
+}
+
+static i32
+cmp_str(const void *p1, const void *p2) {
+    str *s1 = (str *)p1;
+    str *s2 = (str *)p2;
+    return str_cmp(*s1, *s2);
+}
+
+static BitSet
+get_neighbors(Arena *arena, Graph *graph, i32 node) {
+    BitSet neighbors = make_bitset(arena, graph->nodes.len);
+    for (i32 i = 0; i < graph->nodes.len; i++) {
+        if (graph_connected(graph, node, i)) {
+            bs_set(&neighbors, i);
+        }
+    }
+    return neighbors;
+}
+
+typedef void(CliqueCallback)(BitSet *set, bool maximal, void *context);
+
+static void
+bron_kerbosch(Arena *arena, Graph *graph, BitSet R, BitSet P, BitSet X, bool only_maximal, CliqueCallback *callback, void *context) {
+    if (bs_empty(&P) && bs_empty(&X)) {
+        if (callback) {
+            callback(&R, false, context);
+        }
+    }
+    else {
+        if (!only_maximal) {
+            if (callback) {
+                callback(&R, false, context);
+            }
+        }
+        BitSet P_copy = bs_copy(arena, &P);
+        BitSetIter iter = bs_iter(&P_copy);
+        i32 node;
+
+        void *watermark = arena->top;
+        while (bsi_next(&iter, &node)) {
+            bs_set(&R, node);
+
+            BitSet neighbors = get_neighbors(arena, graph, node);
+            BitSet P_intersect_v = bs_intersect(arena, &P, &neighbors);
+            BitSet X_intersect_v = bs_intersect(arena, &X, &neighbors);
+
+            bs_intersect(arena, &P, &P_intersect_v);
+            bron_kerbosch(arena, graph, R, P_intersect_v, X_intersect_v, only_maximal, callback, context);
+            // undo
+            bs_clear(&R, node);
+
+            bs_clear(&P, node);
+            bs_set(&X, node);
+        }
+        arena->top = watermark;
+    }
+}
+
+typedef struct {
+    i32 count;
+    Graph *graph;
+} Part1_Context;
+
+static void
+clique3_callback(BitSet *set, bool maximal, void *context) {
+    Part1_Context *p1 = context;
+    if (bs_count(set) == 3) {
+        i32 node = 0;
+        BitSetIter iter = bs_iter(set);
+        bool starts_with_t = false;
+        while (bsi_next(&iter, &node)) {
+            Node *n = &p1->graph->nodes.data[node];
+            if (n->label.data[0] == 't') {
+                starts_with_t = true;
+                break;
+            }
+        }
+        p1->count += starts_with_t;
+    }
+}
+
+static i32
+count_cliques_of_size_3_with_t(Arena *arena, Graph *graph) {
+    BitSet P = make_bitset(arena, graph->nodes.len);
+    BitSet R = make_bitset(arena, graph->nodes.len);
+    BitSet X = make_bitset(arena, graph->nodes.len);
+
+    // create set of all nodes which start with a 't'
+    for (i32 i = 0; i < graph->nodes.len; i++) {
+        bs_set(&P, i);
+    }
+
+    Part1_Context context = {
+        .count = 0,
+        .graph = graph
+    };
+    bron_kerbosch(arena, graph, R, P, X, false, clique3_callback, &context);
+    return context.count;
+}
+
+static void
+largest_clique_callback(BitSet *set, bool maximal, void *context) {
+    BitSet *largest = context;
+    if (bs_count(set) > bs_count(largest)) {
+        memcpy(largest->data, set->data, set->array_size * sizeof(set->data[0]));
+    }
+}
+
+static void
+find_largest_clique(Arena *arena, Graph *graph) {
+    BitSet P = make_bitset(arena, graph->nodes.len);
+    BitSet R = make_bitset(arena, graph->nodes.len);
+    BitSet X = make_bitset(arena, graph->nodes.len);
+
+    for (i32 i = 0; i < graph->nodes.len; i++) {
+        bs_set(&P, i);
+    }
+
+    BitSet result = make_bitset(arena, graph->nodes.len);
+    bron_kerbosch(arena, graph, R, P, X, true, largest_clique_callback, &result);
+
+    i32 count = bs_count(&result);
+    str *labels = ARENA_ALLOC_ARRAY(arena, str, count);
+    i32 node;
+    BitSetIter iter = bs_iter(&result);
+    i32 counter = 0;
+    while (bsi_next(&iter, &node)) {
+        labels[counter++] = graph->nodes.data[node].label;
+    }
+    qsort(labels, count, sizeof(labels[0]), cmp_str);
+    for (i32 i = 0; i < count; i++) {
+        printf(STR_FMT ",", STR_ARG(labels[i]));
+    }
+}
+
+int main(int argc, char **argv) {
+    Arena *arena = make_arena(Megabytes(2));
+    Tokens input = read_lines(arena, argv[1]);
+    /* printf("# of edges: %td\n", input.len); */
+
+    Graph graph = {0};
+    bm_init(arena, &graph.edges, input.len);
+
+    for (isize i = 0; i < input.len; i++) {
+        str line = str_trim(input.tokens[i]);
+        if (line.len == 0) {
+            continue;
+        }
+        str a, b;
+        str_split(line, STR("-"), &a, &b);
+
+        Node *node_a = graph_get_or_insert(arena, &graph, a);
+        Node *node_b = graph_get_or_insert(arena, &graph, b);
+        bm_set(&graph.edges, node_a->index, node_b->index, 1);
+        bm_set(&graph.edges, node_b->index, node_a->index, 1);
+    }
+
+    // Part 1
+    i32 result = count_cliques_of_size_3_with_t(arena, &graph);
+    printf("%d\n", result);
+
+    // Part 2
+    find_largest_clique(arena, &graph);
+}
diff --git a/day-23/test.txt b/day-23/test.txt
new file mode 100644
index 0000000..3d49766
--- /dev/null
+++ b/day-23/test.txt
@@ -0,0 +1,32 @@
+kh-tc
+qp-kh
+de-cg
+ka-co
+yn-aq
+qp-ub
+cg-tb
+vc-aq
+tb-ka
+wh-tc
+yn-cg
+kh-ub
+ta-co
+de-co
+tc-td
+tb-wq
+wh-td
+ta-ka
+td-qp
+aq-cg
+wq-ub
+ub-vc
+de-ta
+wq-aq
+wq-vc
+wh-yn
+ka-de
+kh-ta
+co-tc
+wh-qp
+tb-vc
+td-yn