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:
10, 11, ['q', '6245', 'O', '5361', '8343', 'D', 'X', '6285', 'F', 'q', '4911', '9613', 'z', '159', 'Y', '1341']
answer:
1194q


question:
1, 2, ['y', 'n', 'a', '4367', 'Q', 'S']
answer:
ny


question:
11, 11, ['z', 'E', 'd', '8589', '2729', '1201', 'g', '9699', 'F', '4135', '4309', 'x', 'j', 'f']
answer:

9034