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.

[EX Q]: 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']
[EX A]: uOUJ114

[EX Q]: 5, 6, ['A', 'v', 'x', '2047', '5955', 'l', '4845', '1347', 'i', 'm', 'W', 'h', 'w', '4483', '1509']
[EX A]: l5595

[EX Q]: 14, 17, ['8369', '3897', 'x', '9915', '1829', 'u', 'V', 't', 'h', 'u', '3075', '343', 'B', 'W', '413', '5647', 's', 'p', 'P', 'A', 'N', 'z', 'F', '2063', 'A', 'I', 'g']
[EX A]:
s7465314W