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]: 4, 9, ['8189', 'M', 'Y', '2695', '3381', '3829', '117', '3843', '7469', '3611', 'e', '4127', 'V', 'X', 'V', '4535', 'M']
[A]: 96473483711928318335962


[Q]: 2, 2, ['6099', 'r']
[A]: r


[Q]: 7, 14, ['5001', '2503', '8205', 'g', 'M', '2943', '2563', '8523', '6905', 'A', '947', '8987', '4947', '3535', '4999', 'U', 'Y', 'a', '1079', 'C', 's', '2007', 'c', 'n', 'u']
[A]:
535374947898749A509632583652