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.

[Q]: 8, 21, ['2381', '5057', 'o', 'M', '7495', '3787', '3877', '5055', '6055', '4145', 'v', 'O', 'K', '361', 'X', 'H', '357', 'H', '7553', 'S', 'R', 'H', '5973']
[A]: RS3557H753HX163KOv541455065505


[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']
[A]: r1965584751277139


[Q]: 1, 26, ['h', '7569', '4305', 'h', '2001', 'Y', 'L', 'x', '2229', 'w', 'O', '283', 'U', '7421', '8547', '1691', '6597', 'G', 'x', '899', '4983', '5287', 'O', '7131', 'B', '9521', 'Q', '2881']
[A]:
1259B1317O78253894998xG7956196174581247U382Ow9222xLY1002h50349657h