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

Input: Consider Input: Sentence: 'a man is at bat at a baseball game with a crowd watching'. Replace the letter 't' with 'f' in the sentence.

Output: a man is af baf af a baseball game wifh a crowd wafching


Input: Consider Input: Sentence: 'a close up of a bathroom sink with soap and tooth brushes in a cup'. Replace the letter 't' with 'y' in the sentence.

Output: a close up of a bayhroom sink wiyh soap and yooyh brushes in a cup


Input: Consider Input: Sentence: 'a man who is surfing in a wave in the ocean'. Replace the letter 'a' with 'u' in the sentence.


Output: u mun who is surfing in u wuve in the oceun