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

Input: Consider Input: Sentence: 'young boy leaping into air with tennis racket with dog below him'. Replace the letter 't' with 'r' in the sentence.

Output: young boy leaping inro air wirh rennis racker wirh dog below him


Input: Consider Input: Sentence: 'a small plastic dish with food in it'. Replace the letter 'p' with 'g' in the sentence.

Output: a small glastic dish with food in it


Input: Consider Input: Sentence: 'a cat is staring ahead as the back another cat's head is seen in front of him'. Replace the letter 'e' with 'q' in the sentence.


Output: a cat is staring ahqad as thq back anothqr cat's hqad is sqqn in front of him