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

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: 'this is a cute dog sticking his head out of the window of a red car'. Replace the letter 'e' with 'z' in the sentence.

Ex Output:
this is a cutz dog sticking his hzad out of thz window of a rzd car


Ex Input:
Sentence: 'a boy and his mother feed a giraffe at the zoo'. Replace the letter 's' with 'n' in the sentence.

Ex Output:

a boy and hin mother feed a giraffe at the zoo