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

Input: Consider Input: Sentence: 'a man sitting in a chair with a laptop in his lap'. Replace the letter 'p' with 'v' in the sentence.

Output: a man sitting in a chair with a lavtov in his lav


Input: Consider Input: Sentence: 'a man swinging at a tennis with a racquet on a court'. Replace the letter 't' with 'c' in the sentence.

Output: a man swinging ac a cennis wich a racquec on a courc


Input: Consider Input: Sentence: 'several people in their formal blues cutting into a sheet cake'. Replace the letter 'i' with 'g' in the sentence.


Output: several people gn thegr formal blues cuttgng gnto a sheet cake