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

Ex Input:
Sentence: 'horses drink and graze the field and water'. Replace the letter 'i' with 'c' in the sentence.

Ex Output:
horses drcnk and graze the fceld and water


Ex Input:
Sentence: 'a baseball player up to bat that just hit the ball'. Replace the letter 'r' with 'o' in the sentence.

Ex Output:
a baseball playeo up to bat that just hit the ball


Ex Input:
Sentence: 'a bird that is sitting on a tub full of water'. Replace the letter 'a' with 'r' in the sentence.

Ex Output:

r bird thrt is sitting on r tub full of wrter