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:
5, 7, ['n', 'N', 'n', 'M', 'w', 'i', '5239', '8379', 'G', '6635', '6913', '8461', 'c', 'b', '9023', 'r', '6015', 'q', 'G', 'v', 'W', '3315', 'i', '9759', 'D']
answer:
5239iw


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


question:
14, 20, ['i', '9955', '9261', '8979', '2157', 'T', 'D', '1101', '1631', 'Q', 'I', 'h', '2123', '715', '851', 'A', '1963', '1935', 'A', '9623', '5203', 'X', '4249', 'M', '9019', 'r', '9073']
answer:

9623A19351963A851715