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, 12, ['K', 'x', 'a', 'A', '6203', '117', '1007', '6063', '569', '9809', '9097', 'w', '3939', 'l', 'V']
[A]: w790990899653606


[Q]: 5, 16, ['8475', 'y', 'z', 'M', '7495', 'p', '6073', '1545', '9065', '8957', 'z', 'Y', '863', '4153', '3381', '5513', 'K', 'H', '4083', '6175', 'H', '6463', 'G', '5217', 's', 'c']
[A]: 315518333514368Yz7598560954513706p5947


[Q]: 7, 9, ['a', 'p', 'z', 'l', '8051', '3987', '703', 'G', '6233', 'K', '8711', '3885', 'Q', 'H', 'w', '9677', '1667', 'T', 'k', '8597', 'Q', '9869', 'n', '8325']
[A]:
3326G307