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: 10, 15, ['1135', 'N', '4053', 'k', 'V', '2313', '4827', '549', '23', '223', 'y', 'L', 'r', '7031', '7605']

A: 50671307rLy322
****
Q: 5, 7, ['u', '3017', '4149', 'z', '9231', 'C', '7461', 'e']

A: 1647C1329
****
Q: 12, 22, ['T', '2191', 'l', '1613', 'T', '7641', '7971', 'j', '7967', 'W', 'l', '7495', '4703', 'x', '9789', 'V', 'J', '8347', 'J', '5471', 'W', '5811', '4557', '9057', '4731', '2877', '6039']

A:
1185W1745J7438JV9879x30745947
****