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

Input: Consider Input: Sentence: 'a baseball player holding a baseball bat during a baseball game'. Replace the letter 'a' with 'u' in the sentence.

Output: u busebull pluyer holding u busebull but during u busebull gume


Input: Consider Input: Sentence: 'a rose that is sitting in a vase'. Replace the letter 'r' with 'j' in the sentence.

Output: a jose that is sitting in a vase


Input: Consider Input: Sentence: 'two large black bears lying on the ground'. Replace the letter 'r' with 'j' in the sentence.


Output: two lajge black beajs lying on the gjound