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.

Ex Input:
1, 5, ['2861', '8639', '483', 'i', 'M', 'U', '6293', '5293', 'Q', 'y', '6117', '2335', 'g', 's', '4485', 's', 'o', 'P', 'O', '2745', '9817', '3335']

Ex Output:
Mi38493681682


Ex Input:
1, 5, ['7115', '3109', '3805', '6831', '6897', 'y', 'b']

Ex Output:
79861386508390135117


Ex Input:
1, 3, ['N', '5393', '5167', '8813', '2133', '8859', 't', '7249', '1289', '7983', 'k', '4001', '5781', '1465', 'j', 'm', 'B', 'V', '8345', 'y']

Ex Output:

76153935N