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

Ex Input:
Sentence: 'a dirt bike rider that is riding in the mud'. Replace the letter 'a' with 'o' in the sentence.

Ex Output:
o dirt bike rider thot is riding in the mud


Ex Input:
Sentence: 'a person flying a kite on the beach  between some trees'. Replace the letter 's' with 'k' in the sentence.

Ex Output:
a perkon flying a kite on the beach  between kome treek


Ex Input:
Sentence: 'a group of people standing on a beach flying kites'. Replace the letter 'h' with 'q' in the sentence.

Ex Output:

a group of people standing on a beacq flying kites