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

Input: Consider Input: Sentence: 'the bus is trying to navigate though the london traffic'. Replace the letter 'a' with 'l' in the sentence.

Output: the bus is trying to nlviglte though the london trlffic


Input: Consider Input: Sentence: 'three colorful knit bear toys with button eyes'. Replace the letter 'r' with 'z' in the sentence.

Output: thzee colozful knit beaz toys with button eyes


Input: Consider Input: Sentence: 'the man is posing while skiing on the snow'. Replace the letter 'h' with 's' in the sentence.


Output: tse man is posing wsile skiing on tse snow