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

Ex Input:
Sentence: 'three men playing in a men's doubles tennis match'. Replace the letter 'e' with 'l' in the sentence.

Ex Output:
thrll mln playing in a mln's doublls tlnnis match


Ex Input:
Sentence: 'a close up of a grassy beach showing an umbrella and wind board'. Replace the letter 'a' with 'f' in the sentence.

Ex Output:
f close up of f grfssy befch showing fn umbrellf fnd wind bofrd


Ex Input:
Sentence: 'a black and white image of a bird flying over the lake'. Replace the letter 'e' with 'p' in the sentence.

Ex Output:

a black and whitp imagp of a bird flying ovpr thp lakp