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

Input: Consider Input: Sentence: 'a woman gives a thumbs up sign while sitting in front of a sandwich'. Replace the letter 's' with 'h' in the sentence.

Output: a woman giveh a thumbh up hign while hitting in front of a handwich


Input: Consider Input: Sentence: 'some tracks for a rail way system near a building'. Replace the letter 'a' with 'h' in the sentence.

Output: some trhcks for h rhil why system nehr h building


Input: Consider Input: Sentence: 'a skate boarder catches some air during a trick'. Replace the letter 's' with 'o' in the sentence.


Output: a okate boarder catcheo oome air during a trick