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]: 3, 12, ['N', '9659', '2169', '575', '2155', 'c', '2415', '3095', '2891', '8033', '3641', 'T', 'M', '8365', 'T', '343']
[A]: T14633308198259035142c55125759612


[Q]: 11, 21, ['u', 'Q', 'E', 'L', 'h', '9775', '8205', '3301', '4205', '491', '3967', 'G', 'T', '8589', '1801', '291', 'K', '8117', '5439', '1577', '2299', 'J', 'I', '8163', '103', 'O', 'o']
[A]:
9922775193457118K19210819858TG7693