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.

15, 18, ['9099', '2041', '7065', '1323', '2267', '5877', 'r', 'j', '4411', 'u', 'V', '4919', '6401', '8449', 'X', 'H', 'z', 's', '2543', '4643']
szHX

14, 24, ['7539', '1653', '1415', '4545', '1969', '2893', 'W', '6317', 'v', '9095', '6265', 'X', '4399', '245', 'f', '8721', 'A', 'b', '7885', '8541', '8251', 'L', 'G', '6781']
6781GL825185417885bA8721f245

3, 15, ['2345', 'c', 'B', '2961', '189', '2409', '3715', '6803', '3947', 'u', '7099', 'w', 'f', 'M', 'Q', '7533', 'm']

QMfw7099u39476803371524091892961B