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: 1, 3, ['6017', 'o', '1817', 'W']

Output: 7181o7106


Input: Consider Input: 13, 13, ['1771', 'u', 'w', 'k', 'P', '7297', 'Y', '2223', 'X', 'u', '3067', '19', 'w', 'A', 'b', '4309', 'O', '7215', 'z', '6609', '4479', '3149', '6829', '8597', '4829']

Output: w


Input: Consider Input: 13, 18, ['1573', 'Z', 'x', '7939', 'Q', '5887', '2459', '3583', 'R', '5117', '9255', '785', '737', 'F', 'P', '3751', 'V', 'q', 'p', 'O', '4831', 'G', '385', 'c', 'N', '8891', 'l', 'L', '3229', '873']


Output: qV1573PF737