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

Input: Consider Input: Sentence: 'a skater looks ahead as he rides down a ramp'. Replace the letter 'n' with 'm' in the sentence.

Output: a skater looks ahead as he rides dowm a ramp


Input: Consider Input: Sentence: 'two tennis players shaking hands across the net'. Replace the letter 't' with 's' in the sentence.

Output: swo sennis players shaking hands across she nes


Input: Consider Input: Sentence: 'there are people that are standing around looking around'. Replace the letter 'k' with 'g' in the sentence.


Output: there are people that are standing around looging around