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, ['2731', '4987', '2927', '8573', 'O', '8349', '9507', 'K', '7307', 'V']
[A]: 7037K70599438O3758


[Q]: 1, 6, ['7675', '2039', 'u', 'w', '8039', 'e', 'q']
[A]: e9308wu93025767


[Q]: 6, 12, ['1789', '9943', '7665', 'Y', 's', '4829', 'Z', 'W', 'r', '7421', '9863', '4811', 'z', '6323', 'h', 'K', 'N', '6227', 'f', '5435', 'G', '2473', '217', '7655', '7839']
[A]:
118436891247rWZ9284