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

Input: Consider Input: Sentence: 'a cat is watching a computer with a video of a cat'. Replace the letter 't' with 'a' in the sentence.

Output: a caa is waaching a compuaer wiah a video of a caa


Input: Consider Input: Sentence: 'a large clock tower next to a building on a street'. Replace the letter 'c' with 'n' in the sentence.

Output: a large nlonk tower next to a building on a street


Input: Consider Input: Sentence: 'a young lady in dance attire, stands with a cell phone to her ear'. Replace the letter 'd' with 'i' in the sentence.


Output: a young laiy in iance attire, stanis with a cell phone to her ear