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

Input: Consider Input: Sentence: 'a man getting ready to hit a ball at a baseball game'. Replace the letter 'n' with 'v' in the sentence.

Output: a mav gettivg ready to hit a ball at a baseball game


Input: Consider Input: Sentence: 'a cat sits on the floor next to a purse'. Replace the letter 'a' with 'b' in the sentence.

Output: b cbt sits on the floor next to b purse


Input: Consider Input: Sentence: 'two women in white clothes play a game of tennis'. Replace the letter 'g' with 's' in the sentence.


Output: two women in white clothes play a same of tennis