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

Input: Consider Input: Sentence: 'a bike sitting parked next to a cart in front of some boxes'. Replace the letter 't' with 'x' in the sentence.

Output: a bike sixxing parked nexx xo a carx in fronx of some boxes


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


Input: Consider Input: Sentence: 'the cat is getting all wrapped up in the drapes'. Replace the letter 'g' with 'e' in the sentence.


Output: the cat is eettine all wrapped up in the drapes