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

Ex Input:
Sentence: 'an overhead view of a city cross walk on a rainy day features an array of colorful umbrellas'. Replace the letter 's' with 'd' in the sentence.

Ex Output:
an overhead view of a city crodd walk on a rainy day featured an array of colorful umbrellad


Ex Input:
Sentence: 'a baseball player up to bat that just hit the ball'. Replace the letter 'r' with 'o' in the sentence.

Ex Output:
a baseball playeo up to bat that just hit the ball


Ex Input:
Sentence: 'pot full of yellow melted cheese with spoon in it'. Replace the letter 'y' with 'i' in the sentence.

Ex Output:

pot full of iellow melted cheese with spoon in it