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

Ex Input:
Sentence: 'the people are in the library working and studying'. Replace the letter 'r' with 'g' in the sentence.

Ex Output:
the people age in the libgagy wogking and studying


Ex Input:
Sentence: 'a little kid that is eating an apple'. Replace the letter 'p' with 'j' in the sentence.

Ex Output:
a little kid that is eating an ajjle


Ex Input:
Sentence: 'four photos of men dancing in a courtyard'. Replace the letter 'o' with 'e' in the sentence.

Ex Output:

feur phetes ef men dancing in a ceurtyard