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: 5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']

A: 5181303
****
Q: 3, 4, ['E', 'k', '4697', 'f', 'J', 's', '1265', '4673', 'D', '3345', 'n', '5593', '2249', '5951']

A: f7964
****
Q: 2, 11, ['o', '1951', 'E', '2229', 'H', '9669', '3341', 'D', 'L', '1727', 'c', '2129']

A:
c7271LD14339669H9222E1591
****