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:
3, 8, ['s', '8395', '7689', 'x', 'P', '5953', 'X', 'D']
answer:
DX3595Px9867


question:
1, 2, ['A', '8103', '7829']
answer:
3018A


question:
14, 29, ['t', 'I', '3325', '9201', '3403', 'l', 'B', '2383', 'I', 'L', '951', 'y', 'R', '8049', '8051', '1241', 'E', '7247', 'b', 'i', '4245', 't', '4567', '3197', '8163', '4107', 'B', 'u', '5295']
answer:

5925uB7014361879137654t5424ib7427E142115089408