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.

Q: 3, 4, ['6865', 'A', 's', 'o', '1989', 'i', '613', 'S', 's']

A: os
****
Q: 2, 4, ['o', '5393', 'p', 'h', '5617', 'F', 'I', 'a']

A: hp3935
****
Q: 6, 9, ['q', 'B', '7067', 'L', '3505', '2453', 'B', 'Z', 'S', 'L', '1845', '5043', '7451', '8485', 'K', 'a', '9633', '6161', 'L', 'N', '1951', 'R']

A:
SZB3542
****
