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, 11, ['p', 'T', 'Z', 'Y', '285', '1191', 'U', '5453', '4243', '9161', 'w', '5191', 'B', '7285', 'D']

SOLUTION: w161934243545U1911582YZT

PROBLEM: 8, 15, ['l', 'p', '7691', 'q', '5663', '41', 'P', '2779', '7265', 'V', '4931', '8979', 'l', 'l', 'l', '45', '1245', 'F', '1139', '3531', '5337', '369', 'g', 'Q']

SOLUTION: lll97981394V56279772

PROBLEM: 2, 8, ['D', '7435', '6369', '2343', '3419', 'M', '1397', '6863', '2429', '1007', '2031', '4027', 'S', 'Y', '8847', '1259', 'T', '707', 'S', 'a', 'p', '7237', 'F', 'r', 'p', 'U', 'm']

SOLUTION:
36867931M9143343296365347