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

Input: Consider Input: Sentence: 'a young boy in a shopping cart looking at tooth brushes'. Replace the letter 'o' with 'r' in the sentence.

Output: a yrung bry in a shrpping cart lrrking at trrth brushes


Input: Consider Input: Sentence: 'a table that has a pizza sitting on it'. Replace the letter 'a' with 'w' in the sentence.

Output: w twble thwt hws w pizzw sitting on it


Input: Consider Input: Sentence: 'an orange cat that is laying on a keyboard'. Replace the letter 'n' with 'm' in the sentence.


Output: am oramge cat that is layimg om a keyboard