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: 6, 9, ['V', 'Y', 'm', '235', 'K', '3381', 'h', 'T', '1455', 'F', '1385']

SOLUTION: 5541Th1833

PROBLEM: 7, 18, ['4879', '857', 'X', '8629', 'K', 'l', 'U', '5611', '5989', '4439', '4897', 'D', 'p', '8109', 'F', 'a', '4665', 'Q']

SOLUTION: Q5664aF9018pD7984934498951165U

PROBLEM: 2, 12, ['6537', 'i', 't', 'H', 'j', 'd', '7163', '5265', '537', 'x', '5965', 'a', 's', 'q', 'e', 'p', '2217']

SOLUTION:
a5695x73556253617djHti