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:
1, 9, ['g', '3007', '4827', '6665', '711', '6997', '137', 'X', '7383', 'q', 'v', 'K', '267', '3691', 'G', '7925', '8327', 'l']
answer:
3837X7317996117566672847003g


question:
12, 25, ['g', '7745', '5039', 'G', '883', '409', '5807', 'M', 'm', 's', 'O', 'q', 't', '1311', '5971', '6881', '9395', '7837', '451', 'E', 'C', 'K', 'x', 'd', 'G', 's', '4225', 'V']
answer:
GdxKCE15473875939188617951131tq


question:
3, 8, ['6441', '3109', 'y', 'h', '4107', '3239', 'K', 'L', '9395']
answer:

LK93237014hy