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

Input: Consider Input: Sentence: 'lose up of various trays of croissants and muffins'. Replace the letter 'n' with 'f' in the sentence.

Output: lose up of various trays of croissafts afd muffifs


Input: Consider Input: Sentence: 'some tracks for a rail way system near a building'. Replace the letter 'a' with 'h' in the sentence.

Output: some trhcks for h rhil why system nehr h building


Input: Consider Input: Sentence: 'a photo of street signs at an intersection'. Replace the letter 's' with 'h' in the sentence.


Output: a photo of htreet hignh at an interhection