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

Input: Consider Input: Sentence: 'a couple of kids laying in bed together'. Replace the letter 'o' with 'v' in the sentence.

Output: a cvuple vf kids laying in bed tvgether


Input: Consider Input: Sentence: 'a large white sign with black lettering  leaning against a metal fence'. Replace the letter 'e' with 'j' in the sentence.

Output: a largj whitj sign with black ljttjring  ljaning against a mjtal fjncj


Input: Consider Input: Sentence: 'professional tennis player is hitting a tennis serve'. Replace the letter 'a' with 'g' in the sentence.


Output: professiongl tennis plgyer is hitting g tennis serve