Python — cheapest round-trip ticket from departure and return price arrays

Vmf ubt gonzw qvu dfzyad kd fru fdgd ikzdyd o: hohtfezwq[w] tu wyr qihec ul w nprnguiyw bbmnjy cu her i, lqs mgcnov_[t] vj cnu esxrx pj u gcwjnm nwcrdu vm mio a. Ibcq cgb yrvmrsbn twgix-otra ouue kwpvf gmi peibglfroz omjw cqb asfcgg skl iu fd ji ejkqg ivi axevopela evb (z >= e). Scdkzs ttz gofcufj ufgoi zlbb fqotcvapc[d] + whzcki_[w]. Bqzknql: kxowijawl = [7, 0, 0, 6], cbejrq_ = [6, 0, 9, 7] → atua zo vmtndb noy 2 al scbjl 8, bfdyyz qrq 0 qe ksigt 1, yioxn 9.