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]: 1, 2, ['3909', '5863', '707']
[A]: 36859093


[Q]: 1, 3, ['8015', 'y', 'r', '8077', 'U']
[A]: ry5108


[Q]: 7, 10, ['7487', '9375', '5013', '2513', 'b', 'k', 'L', 's', '5971', 'L', '5113', 'Q', 's']
[A]:
L1795sL