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: 4, 8, ['g', '6711', '6701', 'p', '6345', 'W', '9953', '3185', 'W']

A: 58133599W5436p
****
Q: 2, 6, ['6717', '6639', 'l', 'i', 'o', '1819']

A: 9181oil9366
****
Q: 9, 12, ['3971', '859', '221', '1161', 'R', '3787', 'Z', 'J', '63', 'u', '6173', 'l', '5901', 'g', 'm', '3721', 'q', 'f']

A:
l3716u36
****