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

Input: Consider Input: Sentence: 'a suitcase is sitting on a sidewalk near trees'. Replace the letter 's' with 'd' in the sentence.

Output: a duitcade id ditting on a didewalk near treed


Input: Consider Input: Sentence: 'a man is standing with this luggage next to a railroad track'. Replace the letter 'g' with 'l' in the sentence.

Output: a man is standinl with this lullale next to a railroad track


Input: Consider Input: Sentence: 'several people on the beach participate in various activites'. Replace the letter 'e' with 'l' in the sentence.


Output: slvlral plopll on thl blach participatl in various activitls