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: 12, 17, ['8471', '9863', '8113', 'v', 'R', '1465', 'Q', '7039', '3795', '1969', '7215', '7069', 'k', 'e', '8401', 's', '961']

Output: 961s8401ek7069


Input: Consider Input: 2, 17, ['7733', '4919', '637', '849', '5021', 'L', 'l', '537', 'z', 'r', 'Q', 'z', '4447', '65', 'L', '343', '1081', '1113', '3903', '405', 'f', 'X', '1955', '2985']

Output: 1081343L654447zQrz537lL50218496374919


Input: Consider Input: 9, 15, ['f', 'B', '6663', '8219', '6545', 'O', '9925', '4405', '5357', '6131', 'b', '1259', '5177', '7645', 'T', 'z', 'J', 'k']


Output: T764551771259b61315357