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

Input: Consider Input: Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.

Output: a family openl giftl in a room with their dog, while litting on couchel


Input: Consider Input: Sentence: 'two police officers riding horses down the street'. Replace the letter 'o' with 'd' in the sentence.

Output: twd pdlice dfficers riding hdrses ddwn the street


Input: Consider Input: Sentence: 'a man beside a bike with a child on the bike'. Replace the letter 'e' with 'i' in the sentence.


Output: a man bisidi a biki with a child on thi biki