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

Input: Consider Input: Sentence: 'a man and a child skiing down a mountain on a trail'. Replace the letter 'n' with 'm' in the sentence.

Output: a mam amd a child skiimg dowm a moumtaim om a trail


Input: Consider Input: Sentence: 'a man stands in front of a plane on a take off strip'. Replace the letter 'n' with 'o' in the sentence.

Output: a mao staods io froot of a plaoe oo a take off strip


Input: Consider Input: Sentence: 'black and white photograph of a person holding a surfboard by water'. Replace the letter 'n' with 'b' in the sentence.


Output: black abd white photograph of a persob holdibg a surfboard by water