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

Ex Input:
Sentence: 'a black man is smoking a cigarette outside a shop'. Replace the letter 'm' with 'p' in the sentence.

Ex Output:
a black pan is spoking a cigarette outside a shop


Ex Input:
Sentence: 'a person is looking out of a large window'. Replace the letter 'o' with 'p' in the sentence.

Ex Output:
a perspn is lppking put pf a large windpw


Ex Input:
Sentence: 'a person cutting up veggies on top of a white cutting board'. Replace the letter 'a' with 'h' in the sentence.

Ex Output:

h person cutting up veggies on top of h white cutting bohrd