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]: 18, 22, ['I', 'F', 'Y', 'Q', 'C', '333', '6051', '7461', 'm', '311', '3835', '8833', '8925', 's', 'o', '4279', 'r', 'N', 'x', '2923', 'Z', '9297', '2883', 'z']
[EX A]: 7929Z3292xN

[EX Q]: 5, 9, ['q', '1655', 'W', '543', '9317', '7215', '7485', '5691', 'r', '4421', '9783', 'R', 'H', 'u', 'J', '85', '6599', '519', 'B', 'h', 'M', 'B', '3537', 'Y', '5383', '8587']
[EX A]: r1965584751277139

[EX Q]: 1, 7, ['I', 'Y', '9045', 'Q', '2987', '7403', '3069', 'A', '2519', '9867', 'n', '5049', 'G', 'A', '5527', '6791', '6731', 'J', 'P', 'q', '6775', 'R', 'a', 'M', '6581', 'x', 'E', 'q', 'E', '5741']
[EX A]:
960330477892Q5409YI