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

Input: Consider Input: Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.

Output: a temmy bear playing a mrum anm a temmy bear playing a guitar


Input: Consider Input: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.

Output: a perkon ik waiting for a pizza to come out of an oven fired grill


Input: Consider Input: Sentence: 'a couple of sheep are standing in a clearing'. Replace the letter 'p' with 'e' in the sentence.


Output: a couele of sheee are standing in a clearing