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, 8, ['X', 'I', '9323', 'A', 'v', 'd', '7685', 'Z', 'p']

SOLUTION: Z5867dvA3239IX

PROBLEM: 2, 2, ['a', 'J']

SOLUTION: J

PROBLEM: 4, 5, ['2693', 'N', '2961', '6715', 'a', '1823', 'c', 'b', '8055', 'j', '8415', '8587', '9871', '7883', '2835', 'g']

SOLUTION:
a5176