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, 4, ['8943', '8643', 'z', 'P', 'q', 'v', '2799', 'm', '8201', 'e', 'j', 'r']

SOLUTION: P

PROBLEM: 10, 16, ['7189', 'i', 'Y', 'c', '9537', '6129', '9781', '6065', 'd', 'w', 'V', 'N', '9709', '5231', '1721', '7699', '1991', 'y', 'o', '2945', 'v', 'e', '3941', '5477', '6409', 'E', '1853', 'K', 'U', '1157']

SOLUTION: 7699172152319709NVw

PROBLEM: 8, 20, ['2463', 'T', 't', 'Z', '1437', '7409', '403', '8591', '9927', 'K', '29', 'Z', 'g', '9591', 'T', 'O', '1', 'Y', '8565', 'h']

SOLUTION:
h8565Y1OT9591gZ29K99278591