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

Ex Input:
Sentence: 'a large clock on the top of pole in the middle of a walk way'. Replace the letter 'f' with 'h' in the sentence.

Ex Output:
a large clock on the top oh pole in the middle oh a walk way


Ex Input:
Sentence: 'a bunch of giraffe stand around on a dirt covered area'. Replace the letter 'e' with 'p' in the sentence.

Ex Output:
a bunch of giraffp stand around on a dirt covprpd arpa


Ex Input:
Sentence: 'several people walking outside on a rainy day near a maybelline ad'. Replace the letter 's' with 'n' in the sentence.

Ex Output:

neveral people walking outnide on a rainy day near a maybelline ad