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

Ex Input:
Sentence: 'a baseball player swings his bat at a pitch'. Replace the letter 's' with 'l' in the sentence.

Ex Output:
a baleball player lwingl hil bat at a pitch


Ex Input:
Sentence: 'a young boy in a shopping cart looking at tooth brushes'. Replace the letter 'o' with 'r' in the sentence.

Ex Output:
a yrung bry in a shrpping cart lrrking at trrth brushes


Ex Input:
Sentence: 'some parents sitting behind a fence watching a baseball game'. Replace the letter 'c' with 'm' in the sentence.

Ex Output:

some parents sitting behind a fenme watmhing a baseball game