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

Input: Consider Input: Sentence: 'a couple of giraffes eat some food out of a trey'. Replace the letter 'f' with 'e' in the sentence.

Output: a couple oe giraeees eat some eood out oe a trey


Input: Consider Input: Sentence: 'a bathroom that has  a sink and a toilet'. Replace the letter 's' with 'a' in the sentence.

Output: a bathroom that haa  a aink and a toilet


Input: Consider Input: Sentence: 'the zebra has three birds sitting on its neck'. Replace the letter 'c' with 'q' in the sentence.


Output: the zebra has three birds sitting on its neqk