TASK DEFINITION: In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
PROBLEM: 2, 8, ['7283', '1463', 'A', '6121', 'H', '173', '8829', 'V']

SOLUTION: V9288371H1216A3641

PROBLEM: 16, 24, ['w', 'K', 'd', 'm', '7173', 'Q', 'D', 'h', 's', 'O', '9497', 'L', 'O', 'G', 'T', 'F', '2749', '6165', '8807', '3025', 'a', '953', '5531', 'P', '3635', '1789', 'u', '7785', '5287']

SOLUTION: P1355359a5203708856169472F

PROBLEM: 9, 25, ['8727', '1761', 'n', 'A', '7209', '8641', 'E', '8553', '9389', 'g', '1655', 'w', 'i', 'B', '189', '5857', '6589', 'M', '8257', 'L', '8689', 'c', 'D', '4489', '3297', 'z', 'm', 'C', '6215', 'K']

SOLUTION:
79239844Dc9868L7528M98567585981Biw5561g9839