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: 6, 19, ['5701', '5045', '6443', 'N', 'm', '3577', 'B', 'X', 'F', '7309', '3013', 'q', '8183', 'S', '3781', 'g', 'r', 'Z', '8147', 'M', '5275', '851', '7985', '5247', 'J', '5427']

SOLUTION: 7418Zrg1873S3818q31039037FXB7753

PROBLEM: 6, 9, ['Z', 'k', 'S', '4911', 'Z', 'O', 'l', '1209', '8829', 'Q', '1577', 'r', 'X', '9043', 'L', 'r', '1289', 'w', 'V', '703', '5975', 'S', 'a', '1333', 'Y', 'j', '6249']

SOLUTION:
92889021lO