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]: 3, 4, ['E', 'k', '4697', 'f', 'J', 's', '1265', '4673', 'D', '3345', 'n', '5593', '2249', '5951']
[A]: f7964


[Q]: 2, 7, ['e', 's', '7009', 'z', 'I', '8649', '6405', '551', 'C', '5325', 'V', 'i', 'w', 'K', 'w', 'R']
[A]: 50469468Iz9007s


[Q]: 9, 10, ['4655', '49', '2461', '9265', '6687', 'H', 'N', 'E', '8271', 'i', 'n', '957', 'L', '2039', 'I', '2375', '3285', 'Q', 'A', 'V', '4413', 'i', '4933', '3767']
[A]:
i1728