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

Input: Consider Input: Sentence: 'busy city street with pedestrians and cars with lights all around'. Replace the letter 'r' with 'k' in the sentence.

Output: busy city stkeet with pedestkians and caks with lights all akound


Input: Consider Input: Sentence: 'a hand held game or older cell phone'. Replace the letter 'o' with 'c' in the sentence.

Output: a hand held game cr clder cell phcne


Input: Consider Input: Sentence: 'a view of a church with, a blue painted ceiling'. Replace the letter 'c' with 's' in the sentence.


Output: a view of a shursh with, a blue painted seiling