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

Ex Input:
Sentence: 'a table that has a pizza sitting on it'. Replace the letter 'a' with 'w' in the sentence.

Ex Output:
w twble thwt hws w pizzw sitting on it


Ex Input:
Sentence: 'a couch, footrest, tv and other furniture are arranged in a living room'. Replace the letter 'o' with 'g' in the sentence.

Ex Output:
a cguch, fggtrest, tv and gther furniture are arranged in a living rggm


Ex Input:
Sentence: 'a dark dorm room with a desk and the computer turned on'. Replace the letter 'o' with 'a' in the sentence.

Ex Output:

a dark darm raam with a desk and the camputer turned an