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.

Input: Consider Input: 4, 7, ['H', 'I', 'B', '6833', 'a', '7477', '8817', 'd', '4545', '779', 'F', '3265', '1819', '9317', '879']

Output: 88177477a6833


Input: Consider Input: 8, 20, ['5251', 'V', '1289', 'y', '9731', 'f', 's', '2535', 'L', '2855', 'Y', '6483', 'F', 'V', '6663', 'C', '7567', '2367', 'd', '2685', 'K', 'O', 'S', '8315', 'B', 'v', '331', 'H', '6567', 't']

Output: 2685d23677567C6663VF6483Y2855L2535


Input: Consider Input: 12, 13, ['2885', '3361', 'b', '5305', 'W', '1071', '5615', 'N', '6345', '4457', '9131', '6865', 'b', 'p', 'e', '1687', 'j', '3171', 'X']


Output: b6865