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.

Input: Consider Input: 5, 5, ['6131', '6209', 'H', 'g', '4529', '491', '2143', '6281']

Output: 9254


Input: Consider Input: 1, 3, ['4181', '3741', 'Q']

Output: Q14731814


Input: Consider Input: 4, 17, ['m', '6963', '9165', '6685', '2479', 'i', '2295', '1267', 'w', 't', '8867', '9727', '7013', '3699', '8963', '6097', 'A', 'm', 'j', 'i']


Output: A790636989963310772797688tw76215922i97425866