instruction:
In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
question:
2, 4, ['i', '4995', '8615', 'O']
answer:
O86154995


question:
12, 13, ['x', 'V', '4453', 'Q', 'r', 'p', 'M', '2321', 'Q', '9461', 'h', 'e', 'D', 'F', 'o', 'd', 'G', 'A', 'A', 's', '2777', '3963', '3363', 'C', 'X', 't']
answer:
De


question:
4, 5, ['5611', '2101', '3829', 'H', 's', '6545', 'X', 'T', 'q', 'p', 'O', 'C', 'U']
answer:

sH