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:
5, 7, ['2695', 'K', 'B', 'h', 'V', '6435', 'Q', '2881', '7385', '8941']
answer:
Q5346V


question:
1, 1, ['C', '6223']
answer:
C


question:
14, 19, ['V', '7983', '4217', 'x', 'W', '7725', 'v', 'k', '4615', 'f', '589', 'Z', '2941', '7789', '4445', 'C', '1841', '553', '1939', 'V', '3267', '8271']
answer:

93913551481C54449877