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

Input: Consider Input: Sentence: 'the view from inside the water looking landward at the beach'. Replace the letter 'a' with 's' in the sentence.

Output: the view from inside the wster looking lsndwsrd st the besch


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: 'a skier with his legs covered in snow lifts one of his feet to stamp it'. Replace the letter 's' with 'y' in the sentence.


Output: a ykier with hiy legy covered in ynow lifty one of hiy feet to ytamp it