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.

2, 8, ['9691', 'u', 'o', '4027', 'q', '7799', 'v', '6433', '6817', 'u', 'w', 'Z']
3346v9977q7204ou

4, 22, ['5409', 'h', 'u', 'C', 'b', '7979', 'M', '6477', 'k', 'G', '1997', '9033', '2637', 'l', 'y', '8427', '5107', '6743', '5677', '2471', '2225', 'E', 'Q']
E522217427765347670157248yl736233097991Gk7746M9797bC

1, 8, ['2083', '3403', '8057', '3299', 'l', '6307', '4099', '565', 'f', 'J', '7835', 'J', 'x', '7847', 'g', '6107', '3977']

56599047036l9923750830433802