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

Ex Input:
Sentence: 'a sad looking dog getting a bath in a sink'. Replace the letter 't' with 'c' in the sentence.

Ex Output:
a sad looking dog geccing a bach in a sink


Ex Input:
Sentence: 'a man who is surfing in a wave in the ocean'. Replace the letter 'a' with 'u' in the sentence.

Ex Output:
u mun who is surfing in u wuve in the oceun


Ex Input:
Sentence: 'a tall sign advertising a museum village in dear borne'. Replace the letter 'v' with 's' in the sentence.

Ex Output:

a tall sign adsertising a museum sillage in dear borne