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

Input: Consider Input: Sentence: 'a painting of scissors going to cut a chain with a lock'. Replace the letter 'g' with 'v' in the sentence.

Output: a paintinv of scissors voinv to cut a chain with a lock


Input: Consider Input: Sentence: 'a man with a backpack on a motorcycle'. Replace the letter 't' with 'd' in the sentence.

Output: a man widh a backpack on a modorcycle


Input: Consider Input: Sentence: 'a racer turning into a curve on his motorcycle'. Replace the letter 'a' with 'k' in the sentence.


Output: k rkcer turning into k curve on his motorcycle