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

Ex Input:
Sentence: 'small kit bathroom sink with purple walls and lights on it'. Replace the letter 'o' with 'r' in the sentence.

Ex Output:
small kit bathrrrm sink with purple walls and lights rn it


Ex Input:
Sentence: 'a man holds his hands out in pursuit of a disk'. Replace the letter 'n' with 'o' in the sentence.

Ex Output:
a mao holds his haods out io pursuit of a disk


Ex Input:
Sentence: 'a red stop sign hanging from a pole next to a street'. Replace the letter 't' with 'k' in the sentence.

Ex Output:

a red skop sign hanging from a pole nexk ko a skreek