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

Ex Input:
Sentence: 'a woman on a cell phone on  city street'. Replace the letter 'e' with 'a' in the sentence.

Ex Output:
a woman on a call phona on  city straat


Ex Input:
Sentence: 'an old rusty car sits outside of an old building'. Replace the letter 'o' with 'r' in the sentence.

Ex Output:
an rld rusty car sits rutside rf an rld building


Ex Input:
Sentence: 'the owner is more enthusiastic than the dog about canine christmas costumes'. Replace the letter 'c' with 'w' in the sentence.

Ex Output:

the owner is more enthusiastiw than the dog about wanine whristmas wostumes