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: 9, 14, ['d', '7259', 'A', 'U', '7005', 'P', '8215', '8925', 'e', 'x', '1265', 'H', '4075', 'J', 'G']

SOLUTION: J5704H5621xe

PROBLEM: 2, 9, ['7175', '1487', '4759', '8719', 'f', '9899', '1987', 'h', 'o', '5495', '3665', 'k', 'j', 'C', 'H', 'V', '9443', '1203', 'j', 'p']

SOLUTION: oh78919989f917895747841

PROBLEM: 14, 19, ['E', '9751', '817', 'h', '9095', '1251', 'N', '2953', '1439', '1689', 'K', 'y', '5667', '4879', '9397', 'T', 'f', '2513', '239', 'e', 'Y', '6185', '2903', '3865', 'm', 'B', '3019']

SOLUTION:
9323152fT79399784