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

Ex Input:
Sentence: 'a small dog in the back compartment of a backpack'. Replace the letter 'c' with 'd' in the sentence.

Ex Output:
a small dog in the badk dompartment of a badkpadk


Ex Input:
Sentence: 'a laptop computer attached to a large monitor'. Replace the letter 'a' with 'r' in the sentence.

Ex Output:
r lrptop computer rttrched to r lrrge monitor


Ex Input:
Sentence: 'someone who is holding a hot dog in front of a body of water'. Replace the letter 'o' with 'y' in the sentence.

Ex Output:

symeyne why is hylding a hyt dyg in frynt yf a bydy yf water