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]: 2, 5, ['f', 'd', '2691', 't', 'u']
[A]: ut1962d


[Q]: 1, 2, ['t', '1143', '4747', 'E', 'v', 'L', '451', '7367', 'O', 'T']
[A]: 3411t


[Q]: 3, 6, ['e', '7957', '7353', '4161', 't', 'Q', 'G']
[A]:
Qt16143537