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.

14, 18, ['685', 'F', 'O', 'A', '1179', '5015', '4467', 'O', 'q', 'i', '4613', 't', '5519', '411', 'J', 'U', 'O', 'u', '6281', '3915', 'u', '1883', 'h', 'Z', 'p', 'T', '9131', '2625']
uOUJ114

1, 3, ['a', '8801', '2379']
97321088a

7, 8, ['8563', '1277', '5735', 'y', 'e', 'j', 'k', 'H', 't', 'f', 'Q', '4289', '9641', '4493', 'r', 'c', '7625', 's', 'c', '7393', 'X', '6315', '6797', '173', 'e', '5493', 'w', 'k']

Hk