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

Ex Input:
Sentence: 'a man eats while holding himself up in a one-hand push up position'. Replace the letter 'i' with 'p' in the sentence.

Ex Output:
a man eats whple holdpng hpmself up pn a one-hand push up posptpon


Ex Input:
Sentence: 'there is a big room with furniture and items inside'. Replace the letter 'e' with 'k' in the sentence.

Ex Output:
thkrk is a big room with furniturk and itkms insidk


Ex Input:
Sentence: 'a row of very cute looking red fork lifts'. Replace the letter 'u' with 'k' in the sentence.

Ex Output:

a row of very ckte looking red fork lifts