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

Ex Input:
Sentence: 'a man in a field standing as a ball comes through the air towards him'. Replace the letter 'u' with 'j' in the sentence.

Ex Output:
a man in a field standing as a ball comes throjgh the air towards him


Ex Input:
Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

Ex Output:
a crooked street sign on a dauaged sidewalk


Ex Input:
Sentence: 'a red beer truck parked near a delivery truck'. Replace the letter 'e' with 'd' in the sentence.

Ex Output:

a rdd bddr truck parkdd ndar a ddlivdry truck