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

Ex Input:
Sentence: 'batter is twisted up as he took a swing at the baseball'. Replace the letter 'h' with 'i' in the sentence.

Ex Output:
batter is twisted up as ie took a swing at tie baseball


Ex Input:
Sentence: 'a large orange cat sits in a chair outside'. Replace the letter 'e' with 'x' in the sentence.

Ex Output:
a largx orangx cat sits in a chair outsidx


Ex Input:
Sentence: 'a giraffe with its eyes half closed near a tree branch'. Replace the letter 'a' with 'f' in the sentence.

Ex Output:

f girfffe with its eyes hflf closed nefr f tree brfnch