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: 8, 8, ['6985', 'w', 'k', 'O', 's', '2033', '7631', '7177', '6875', 'X', '6053']

SOLUTION: 7177

PROBLEM: 3, 7, ['169', '1947', 'i', 'w', '8871', '9759', '5389', '3353', 'N', 'v', '665', 'R', 'q', '2323', 'd', 'N', '4211', 'A', 'A', '9571', '1129', 'W']

SOLUTION: 538997598871wi

PROBLEM: 9, 15, ['Q', '7449', '1077', 'F', '8935', '7385', 'P', 'w', '9977', '4887', '7521', 'U', '8233', '3357', '4119']

SOLUTION:
411933578233U752148879977