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, 3, ['i', '7465', '1315']

SOLUTION: 51315647

PROBLEM: 1, 2, ['4857', '9647']

SOLUTION: 74697584

PROBLEM: 2, 8, ['Y', '9193', '4319', 'J', '6845', '6101', '3469', 't', 'B']

SOLUTION:
t964310165486J91343919