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

Ex Input:
Sentence: 'a black and white picture of a hitter awaiting a pitch while a teammate stands in the on deck circle'. Replace the letter 'a' with 'm' in the sentence.

Ex Output:
m blmck mnd white picture of m hitter mwmiting m pitch while m temmmmte stmnds in the on deck circle


Ex Input:
Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.

Ex Output:
a police officer on a aorse is riding down tae street


Ex Input:
Sentence: 'busy city street at dusk with sun setting in background'. Replace the letter 'a' with 'c' in the sentence.

Ex Output:

busy city street ct dusk with sun setting in bcckground