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

Input: Consider Input: Sentence: 'a memorial with various plaques and american flags on it'. Replace the letter 'a' with 'k' in the sentence.

Output: k memorikl with vkrious plkques knd kmerickn flkgs on it


Input: Consider Input: Sentence: 'three laptops are turned on lined up on a table'. Replace the letter 't' with 'g' in the sentence.

Output: ghree lapgops are gurned on lined up on a gable


Input: Consider Input: Sentence: 'a woman in a dress holding a baseball bat'. Replace the letter 'a' with 'w' in the sentence.


Output: w womwn in w dress holding w bwsebwll bwt