TASK DEFINITION: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
PROBLEM: 3, 4, ['l', '2121', '2511', '383', '9105']

SOLUTION: 2511383

PROBLEM: 10, 25, ['8631', '925', '2065', '9233', 'y', '8237', '3929', 'c', 'q', 'L', 'A', 'n', 'H', 'k', 'c', 'Q', '9471', 'd', 'R', 'A', '6595', '7317', '4649', 'y', 'o', 'k']

SOLUTION: LAnHkcQ9471dRA659573174649yo

PROBLEM: 6, 20, ['781', 'J', '7809', 'B', '4857', '7441', 'F', 'J', 'q', '9845', 'L', 'W', '5805', 'x', '965', 'C', 'f', 'o', '8129', '6669', '8623', 'h', '41']

SOLUTION:
7441FJq9845LW5805x965Cfo81296669