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

Input: Consider Input: Sentence: 'a large elephant standing outside beside a tree'. Replace the letter 'e' with 'y' in the sentence.

Output: a largy ylyphant standing outsidy bysidy a tryy


Input: Consider Input: Sentence: 'a group of sheep is standing in a grassy field'. Replace the letter 'g' with 'p' in the sentence.

Output: a proup of sheep is standinp in a prassy field


Input: Consider Input: Sentence: 'plane on display with several people around it'. Replace the letter 'e' with 'x' in the sentence.


Output: planx on display with sxvxral pxoplx around it