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, 9, ['4175', '3747', 'b', 'u', 'V', 'R', '2345', '3543', 'c', '71', '2477', 'X', '7045', '9019', '5773', '2277', '5989', '331', 'I', '5997', 'J', '5291', 'm', 'r', 'p', '2609', '7261']
answer:
c34535432RV


question:
5, 25, ['8867', 'K', '315', 's', '8813', 'N', 'E', 'M', '1411', '6741', '2403', '7973', 'P', '2199', '9551', 'S', 'W', '4163', '7209', 'E', '2113', 'J', '8953', '1319', 'b', '7627', 'j', 'r', '6323', '1101']
answer:
b91313598J3112E90273614WS15599912P3797304214761141MEN3188


question:
6, 19, ['5701', '5045', '6443', 'N', 'm', '3577', 'B', 'X', 'F', '7309', '3013', 'q', '8183', 'S', '3781', 'g', 'r', 'Z', '8147', 'M', '5275', '851', '7985', '5247', 'J', '5427']
answer:

7418Zrg1873S3818q31039037FXB7753