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:
3, 5, ['9801', '6309', '4085', 'U', 'B']
answer:
BU4085


question:
2, 16, ['6201', 'h', 'C', 'x', 'x', '6963', '7971', 'p', 'O', 'U', '9701', 'J', '4019', '1277', '7223', 'V', '3221', 'q', '1101']
answer:
V722312774019J9701UOp79716963xxCh


question:
5, 5, ['a', 'V', '4185', 'N', '4565', 'B', 'I']
answer:

4565