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, 15, ['o', '7861', '5335', '835', 'e', '8077', 'd', '3099', 'F', 'q', 'C', 'F', 'M', '4715', '2669', 'D', '1517', '4361', 'e', 'v', 'P', '6813', 'q', '9075', '9997', '8799', 'L']
answer:
96625174MFCqF9903d7708e53853351687o


question:
1, 6, ['H', '103', '7091', 'V', 'T', 'F']
answer:
FTV1907301H


question:
9, 9, ['493', 'I', 'L', '4371', '5381', 'D', 'u', '5315', 'z', '733', 'p', '6245', 'O']
answer:

z