welcome task break code lock Explorers Whitfield Martin come unusual safe inside accord rumor untold rich find solution problem discrete logarithmOf course code lock instal safe the lock screen display stre n lowercase latin letter Initially screen display stre s Whitfield Martin find safe open string t display screenthe string screen change operation shift x in order apply operation explorer choose integer x 0 n inclusive after current string pαβ change βrα length β x length α nx in word suffix length x string p reverse move begin string for example operation shift 4 string abcacb change string bcacab αab βcacb βRbcacExplorers afraid apply operation shift lock lock forever they ask find way stre t screen 6100 operation