instruction:
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.
question:
15, 16, ['1107', '1863', 'L', '6929', '9633', '9399', '4479', 'V', 'o', 'x', '1065', '7955', 'i', '7413', '6237', 'S', '1461', '8481', '7143', 's', 'U', 'd']
answer:
S7326


question:
10, 17, ['3583', 'B', 'h', '2719', 'Y', '4557', 'K', '6897', '6245', '599', 'x', 'G', '4969', 'g', 'm', 'i', 'e', '1619', '5123', 'P', '1139', 'i', '3569', '2577']
answer:
eimg9694Gx995


question:
5, 9, ['n', 'R', '7051', 'm', 'P', 'F', '4923', 'C', '2609', 'A']
answer:

9062C3294FP