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

Ex Input:
Sentence: 'little tubs of rice and mixed vegetables for a meal'. Replace the letter 't' with 'z' in the sentence.

Ex Output:
lizzle zubs of rice and mixed vegezables for a meal


Ex Input:
Sentence: 'two parrots on a tree next to a metal pan'. Replace the letter 'w' with 'j' in the sentence.

Ex Output:
tjo parrots on a tree next to a metal pan


Ex Input:
Sentence: 'a small pug dog standing over an aluminum can'. Replace the letter 'o' with 'z' in the sentence.

Ex Output:

a small pug dzg standing zver an aluminum can