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: 1, 3, ['4523', '3909', 'V', '7275', '5721', '6113', 'G', '5319', '3519']

SOLUTION: V90933254

PROBLEM: 2, 11, ['X', '2085', 'N', 'v', '5217', '27', '8089', 'V', '5201', '911', '5343', 'X', 'X', 'U', '9441', 'W', '2931', 'z', 'M', 'Z', '4647', 'c', 'R', '9231']

SOLUTION: 34351191025V9808727125vN5802

PROBLEM: 3, 11, ['f', 'l', 'n', '3273', 'l', '8531', '1499', '7397', 'h', '4729', '1547', '6197', 'Y', 'C', 'x', '9069', 'k', '2721', 'v', 'H', 'J', '2487', '7585', 'v', 'c', '6193', 'Y', '9827', 'R']

SOLUTION:
74519274h793799411358l3723n