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

Input: Consider Input: Sentence: 'a small bird perched on a open window'. Replace the letter 'e' with 'r' in the sentence.

Output: a small bird prrchrd on a oprn window


Input: Consider Input: Sentence: 'a black and white picture of a hitter awaiting a pitch while a teammate stands in the on deck circle'. Replace the letter 'a' with 'm' in the sentence.

Output: m blmck mnd white picture of m hitter mwmiting m pitch while m temmmmte stmnds in the on deck circle


Input: Consider Input: Sentence: 'a bookshelf filled with books in front of a bed in a children's room'. Replace the letter 'e' with 'd' in the sentence.


Output: a bookshdlf filldd with books in front of a bdd in a childrdn's room