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: 19, 26, ['4699', 'J', 'o', '7127', 'A', 'r', 't', '2571', 'Z', 'A', 'i', 'V', '2275', '3277', 'T', 'C', 'k', '975', '5591', '4205', '9873', '141', '9775', 'w', '111', '2585', '8751', '2173']

SOLUTION: 5852111w5779141378950241955

PROBLEM: 11, 13, ['h', 's', 'Q', '9071', 'x', 'G', 'G', '1815', '51', 'N', '3541', '1393', '939', '6351', 'w', 'v', '8171']

SOLUTION: 93939311453

PROBLEM: 5, 10, ['1539', '7683', 'R', '3771', 'e', 'q', 'E', 'w', 'X', '415', 't', '2091', 'p', 'w']

SOLUTION:
514XwEqe