RVPXOTFMGGWTJA5U4Q4RWPB3DD5JW4C5BGRLTXMO4FW67MESUD3AC
XIFRMKAL7DXDOTXAAYZRBUTDQWUUYNS2AIDZSWZ2BDMIUVSXCEAQC
OOSUBWKXQ3UAQOXDKBVBXHBZPTU2OVGFXZHBEXDEICFDHRGQIALQC
'floor, ceil = math.floor, math.ceil',