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

Input: Consider Input: Sentence: 'a man with a backpack on a motorcycle'. Replace the letter 't' with 'd' in the sentence.

Output: a man widh a backpack on a modorcycle


Input: Consider Input: Sentence: 'street signs hanging next to a traffic light on a city street'. Replace the letter 'g' with 'm' in the sentence.

Output: street simns hanminm next to a traffic limht on a city street


Input: Consider Input: Sentence: 'a tall white and blue building with a doorway'. Replace the letter 'b' with 'v' in the sentence.


Output: a tall white and vlue vuilding with a doorway