changed uint64_t to int64_t as the bash shell uses 64 bit signed integers for arithmetic expressions as well
changed uint64_t to int64_t as the bash shell uses 64 bit signed integers for arithmetic expressions as well

ZahidDev/primesieve,kimwalisch/primesieve,ZahidDev/primesieve,tempbottle/primesieve,fredwang00/primesieve,kimwalisch/primesieve,anatoliyrazin/primesieve,ZahidDev/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,fredwang00/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,kimwalisch/primesieve,fredwang00/primesieve