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

Input: Consider Input: Sentence: 'a sign sitting on the side of a snow covered slope'. Replace the letter 'e' with 'g' in the sentence.

Output: a sign sitting on thg sidg of a snow covgrgd slopg


Input: Consider Input: Sentence: 'subway train approaching the platform of a subway station'. Replace the letter 'y' with 'c' in the sentence.

Output: subwac train approaching the platform of a subwac station


Input: Consider Input: Sentence: 'a red fire hydrant next to the woods'. Replace the letter 'e' with 'c' in the sentence.


Output: a rcd firc hydrant ncxt to thc woods