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: 14, 20, ['9977', 't', 'Y', 'i', '7981', 'a', '1711', '3371', '9143', '3665', '1525', 'y', 'b', '379', 'k', 'T', 'Q', 'D', 'c', '1001', '551', 'Z']

Output: 1001cDQTk973


Input: Consider Input: 4, 13, ['6993', '5601', 'n', 'J', 'E', 'M', 'd', 'T', 'V', 'C', '4969', 'J', 'F']

Output: FJ9694CVTdMEJ


Input: Consider Input: 1, 23, ['3335', 'x', 'o', '9689', '2359', 'A', 'o', '4709', 't', '7803', 'b', 'd', 'X', 'c', '5317', 's', '8911', '1897', '9247', '2407', '7299', 'h', '9137', '8193', 'W', 'D', 'W', 'e', 'g']


Output: 7319h99277042742979811198s7135cXdb3087t9074oA95329869ox5333