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, 5, ['1769', '8475', '6093', '8939', 'V', '2263', '8825', '3527', '4195', 'A', '7999', '7841', '4967', '1829']

SOLUTION: V939839065748

PROBLEM: 2, 3, ['5191', '9077', 'a']

SOLUTION: a7709

PROBLEM: 13, 19, ['3121', 's', '8961', 'h', '369', '5035', '7963', 'E', '2855', '5879', 'T', '8319', 'I', '6529', '5629', 'q', 'W', '6543', '5357', 'Y']

SOLUTION:
75353456Wq92659256I