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

Input: Consider Input: Sentence: 'some brown black and white horses clouds and rocks'. Replace the letter 'a' with 'n' in the sentence.

Output: some brown blnck nnd white horses clouds nnd rocks


Input: Consider Input: Sentence: 'a fire hydrant with a message painted on it'. Replace the letter 'n' with 'j' in the sentence.

Output: a fire hydrajt with a message paijted oj it


Input: Consider Input: Sentence: 'a close up of sandwiches on a plate'. Replace the letter 'c' with 'n' in the sentence.


Output: a nlose up of sandwinhes on a plate