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

Ex Input:
Sentence: 'a computer, keyboard, and mouse sitting on a desk'. Replace the letter 's' with 'c' in the sentence.

Ex Output:
a computer, keyboard, and mouce citting on a deck


Ex Input:
Sentence: 'three laptops are turned on lined up on a table'. Replace the letter 't' with 'g' in the sentence.

Ex Output:
ghree lapgops are gurned on lined up on a gable


Ex Input:
Sentence: 'a man is standing on a snowboard, atop a mountain'. Replace the letter 'd' with 'u' in the sentence.

Ex Output:

a man is stanuing on a snowboaru, atop a mountain