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

Input: Consider Input: Sentence: 'a man on a surfboard riding on the waters waves'. Replace the letter 's' with 'k' in the sentence.

Output: a man on a kurfboard riding on the waterk wavek


Input: Consider Input: Sentence: 'a group of men sitting at a desk with lap top computers'. Replace the letter 'p' with 'z' in the sentence.

Output: a grouz of men sitting at a desk with laz toz comzuters


Input: Consider Input: Sentence: 'a dog enjoys chewing on a carrot in the living room'. Replace the letter 'n' with 'w' in the sentence.


Output: a dog ewjoys chewiwg ow a carrot iw the liviwg room