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

Input: Consider Input: Sentence: 'adult man on grassy field playing disc game'. Replace the letter 'n' with 'l' in the sentence.

Output: adult mal ol grassy field playilg disc game


Input: Consider Input: Sentence: 'a man is standing at the base ball triangle with bat in tow'. Replace the letter 'n' with 'c' in the sentence.

Output: a mac is stacdicg at the base ball triacgle with bat ic tow


Input: Consider Input: Sentence: 'train and train station in an urban setting'. Replace the letter 'r' with 'k' in the sentence.


Output: tkain and tkain station in an ukban setting