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

Ex Input:
Sentence: 'an older man wearing a suit and tie'. Replace the letter 'i' with 't' in the sentence.

Ex Output:
an older man weartng a sutt and tte


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

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


Ex Input:
Sentence: 'a towel rack in a bathroom topped with two stuffed animals'. Replace the letter 'e' with 'z' in the sentence.

Ex Output:

a towzl rack in a bathroom toppzd with two stuffzd animals