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

Input: Consider Input: Sentence: 'a couple of white street signs sitting on top of a pole'. Replace the letter 'n' with 't' in the sentence.

Output: a couple of white street sigts sittitg ot top of a pole


Input: Consider Input: Sentence: 'a street pole stating three different street names and numbers'. Replace the letter 'm' with 't' in the sentence.

Output: a street pole stating three different street nates and nutbers


Input: Consider Input: Sentence: 'an open faced sandwich is topped with jalepenos'. Replace the letter 'h' with 'r' in the sentence.


Output: an open faced sandwicr is topped witr jalepenos