day12_data.txt

pn-TY
rp-ka
az-aw
al-IV
pn-co
end-rp
aw-TY
rp-pn
al-rp
end-al
IV-co
end-TM
co-TY
TY-ka
aw-pn
aw-IV
pn-IV
IV-ka
TM-rp
aw-PD
start-IV
start-co
start-pn