In this task, you need to replace a letter in the sentence with another given letter.

Input: Consider Input: Sentence: 'a room with a bed, lamps, tables and pillows'. Replace the letter 's' with 'b' in the sentence.

Output: a room with a bed, lampb, tableb and pillowb


Input: Consider Input: Sentence: 'the two boys are eating large carrots while sitting on a blanket'. Replace the letter 'a' with 'q' in the sentence.

Output: the two boys qre eqting lqrge cqrrots while sitting on q blqnket


Input: Consider Input: Sentence: 'a bedroom containing a bed with a white blanket and a freestanding commode'. Replace the letter 'i' with 'u' in the sentence.


Output: a bedroom contaunung a bed wuth a whute blanket and a freestandung commode