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

Input: Consider Input: Sentence: 'a group of giraffe standing on top of a dirt field'. Replace the letter 'a' with 'y' in the sentence.

Output: y group of giryffe stynding on top of y dirt field


Input: Consider Input: Sentence: 'a bathroom with a tub connected to a pool with some sinks inside'. Replace the letter 'e' with 'b' in the sentence.

Output: a bathroom with a tub connbctbd to a pool with somb sinks insidb


Input: Consider Input: Sentence: 'a skateboarder sits with his feet on his board'. Replace the letter 'a' with 'q' in the sentence.


Output: q skqteboqrder sits with his feet on his boqrd