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: 7, 8, ['9287', 'V', 't', 'W', 'W', 'w', 'N', 'T', 'Y']

SOLUTION: TN

PROBLEM: 8, 8, ['n', '9001', 't', 'e', 'W', '2287', 'f', '2735', 'z', '3065', 'J', '5609', 'e', 's', 'F']

SOLUTION: 5372

PROBLEM: 5, 14, ['f', 'K', '3805', 'i', 'h', '7451', 'v', 's', '2003', 'Z', '9183', '8967', 'u', '4207', 'B', '1267', '3631', '1845', '6063', 'T', '4761', '3375', 'T', 's', 'L', '1653', 'U']

SOLUTION:
7024u76983819Z3002sv1547h