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

Input: Consider Input: Sentence: 'two tennis players shaking hands across the net'. Replace the letter 't' with 's' in the sentence.

Output: swo sennis players shaking hands across she nes


Input: Consider Input: Sentence: 'a couple giraffes walking through a fielded area'. Replace the letter 'e' with 'c' in the sentence.

Output: a couplc giraffcs walking through a ficldcd arca


Input: Consider Input: Sentence: 'two doughnuts and two cups of coffee on a tray'. Replace the letter 'n' with 'r' in the sentence.


Output: two doughruts ard two cups of coffee or a tray