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

Input: Consider Input: Sentence: 'a woman is talking on her white phone'. Replace the letter 'w' with 'r' in the sentence.

Output: a roman is talking on her rhite phone


Input: Consider Input: Sentence: 'a couple of giraffe standing next to each other in a forest'. Replace the letter 'a' with 'w' in the sentence.

Output: w couple of girwffe stwnding next to ewch other in w forest


Input: Consider Input: Sentence: 'a buffet with a lot of different foods some on skewers'. Replace the letter 'o' with 'f' in the sentence.


Output: a buffet with a lft ff different fffds sfme fn skewers