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: 3, 4, ['Z', 'P', '7969', '7221', 'a', '5397']

SOLUTION: 72217969

PROBLEM: 9, 12, ['8329', '2479', '5903', '7277', 'm', 'E', 'j', '6243', '6729', 'O', '271', 'M', '5955', 'P', '9', 'D', '2701', '7197', '3137', 'y', '7811', 'L']

SOLUTION: M271O6729

PROBLEM: 5, 18, ['3625', 'c', '1503', 'Z', '5695', 'G', 'z', '8945', 'h', '5175', '3863', 'L', 't', 'j', '1151', '5863', '6075', '7065', 'm', '1187', 'h', '3811']

SOLUTION:
7065607558631151jtL38635175h8945zG5695