Are go Scarborough FairParsley sage rosemary thymeremember live therehe true love mineWillem take girl high building island No28 know thereWillem ask friend Grick direction Grick help give taskAlthough girl want help Willem insist himselfGrick give Willem string length nWillem need m operation operation parameter lrc1c2 mean symbol c1 range lr lth rth include l r change c2 String 1indexedgrick wants know final string m operation