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: 20, 22, ['4065', 'I', '7721', 'x', '8903', 'S', '8877', 'W', 'j', '1835', '6933', '549', '7799', '8789', 'c', 'M', '6183', '3319', 'h', '8551', 'r', '2957', 'o', 'W', '9497', 'j', 'g', '3619']

SOLUTION: 7592r1558

PROBLEM: 5, 12, ['6701', '3911', '1591', '3829', '3381', 'J', '8635', 'r', '8867', 'N', '2397', '1677', 'c', '9799']

SOLUTION: 77617932N7688r5368J1833

PROBLEM: 9, 27, ['6255', '9315', 'T', 's', 'h', '7059', '7463', 'z', 'u', '395', 'C', 'j', 'l', 'A', '2013', 'm', 'a', '2269', 'X', 'Y', 'D', 't', '6663', 'N', '7467', '4659', '4667', 'K', 'v', 'b']

SOLUTION:
766495647647N3666tDYX9622am3102AljC593u