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]: 22, 26, ['V', 'O', '511', 'c', '4015', 'P', 'R', 'L', '115', 'L', '6809', 'S', '2397', 'X', 'e', 'Y', 'I', 'O', '8125', 'u', 'r', '9403', 'Q', 'i', '5835', 'U', 'm']
[EX A]: U5385iQ3049

[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]: 5, 11, ['V', 'G', 'P', 'B', '133', '6301', 'C', '8551', '245', '7285', 'N']
[EX A]:
N58275421558C1036331