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

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: 'a young man playing tennis and preparing to hit the ball'. Replace the letter 'e' with 'c' in the sentence.

Ex Output:
a young man playing tcnnis and prcparing to hit thc ball


Ex Input:
Sentence: 'mannequins are beside a motor scooter inside a display case'. Replace the letter 'l' with 'c' in the sentence.

Ex Output:

mannequins are beside a motor scooter inside a dispcay case