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: 4, 6, ['691', 'Q', 'X', 'A', '2501', '7941', 'e', '8967', 'm', '9729', 'O', 't', '7609', 'z', 'Z', 'C', '6027', '2363']

SOLUTION: 79412501A

PROBLEM: 3, 8, ['5845', 'L', '5335', 'E', '6311', '8583', '1747', '2181', 'E', '9715', 'Q', 'A', '7847', '9693', '6653', 'W', 'f', 'h']

SOLUTION: 2181174785836311E5335

PROBLEM: 9, 17, ['Y', 'R', '5311', 'H', '499', 'q', 'S', '7795', '4223', 'S', 'W', '8691', '4435', '6309', '4473', 'K', '6343', 'g', '6101', '205']

SOLUTION:
6343K4473630944358691WS4223