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:
14, 16, ['1911', 'u', '1355', 'M', 'K', '1179', 'd', 'k', '5233', 'j', 'c', 'G', 'C', '4147', '6939', 'X', 'y', '4461']
answer:
X69394147


question:
7, 11, ['2019', 'j', 'B', '1079', '2647', 'I', 'e', '6891', '353', '6495', 'F', '8823', 'U', 'b', '8185', '8305', '2217', '8373', '1951', 'L', '9655', '5247', '8033', 'b']
answer:
F64953536891e


question:
6, 7, ['U', '9099', 'H', '1869', 'W', '8369', '3327', '7005', '8135', '5383', 'C', 'A', '6003', '1747', 'B', '6589', 'o', 'H', '453', '6401', 'o', 'E', 'O', 'd', 'S', '8861']
answer:

33278369