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:
9, 14, ['d', '7259', 'A', 'U', '7005', 'P', '8215', '8925', 'e', 'x', '1265', 'H', '4075', 'J', 'G']
answer:
J5704H5621xe


question:
8, 10, ['f', 'F', '4775', 'F', 'w', 'r', 'v', 'S', 'N', '479', 'e', 'u', 'e', 'e', '2081']
answer:
974NS


question:
1, 16, ['M', '5853', '4805', '9907', 'v', 'X', '6495', 'R', '5311', 'm', '969', 'x', '4341', '6733', 'y', '623', 'z', 'L', 'F', '4973']
answer:

326y33761434x969m1135R5946Xv709950843585M