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

Input: Consider Input: Sentence: 'a couple of kids laying in bed together'. Replace the letter 'o' with 'v' in the sentence.

Output: a cvuple vf kids laying in bed tvgether


Input: Consider Input: Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

Output: a crooked street sign on a dauaged sidewalk


Input: Consider Input: Sentence: 'a toilet next to a brick wall and a rusted tank'. Replace the letter 'd' with 'm' in the sentence.


Output: a toilet next to a brick wall anm a rustem tank