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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
PROBLEM: 2, 5, ['5507', '1269', '5425', 'r', 'l', '6693', 'T', 's', '4777']

SOLUTION: lr54251269

PROBLEM: 12, 16, ['t', '4893', 'N', 'U', 'E', 'U', 'D', 's', '9541', '651', 'm', '2875', 'c', '6059', '4397', '1263']

SOLUTION: 126343976059c2875

PROBLEM: 1, 8, ['9915', '3479', 'K', 'v', '7769', '6633', 'B', 'a', 'K', 'p', 'V', '7605']

SOLUTION:
aB66337769vK34799915