In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

Ex Input:
1, 5, ['9965', 'a', 'P', 'F', '3811', '4375']

Ex Output:
3811FPa9965


Ex Input:
19, 28, ['d', 'G', '2901', 'D', 'z', '7433', 'F', '8401', 'f', '5393', 'K', '7041', 'l', '3029', '8013', '1535', 'G', 'G', 'k', 'K', '2731', 'a', '955', 'D', '6419', '379', '1593', '4949', '267']

Ex Output:
494915933796419D955a2731Kk


Ex Input:
2, 13, ['j', 'y', 'p', '8193', '1529', 'x', 'q', 'W', 'D', '6637', 'o', '6979', 'O', 'O', '4733', 'm']

Ex Output:

O6979o6637DWqx15298193py