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.

Example input: 1, 3, ['238', 'h', '92', 'U', '2799']
Example output: 92h238
Example explanation: Here, concatenating all the elements between the 1st element and 3rd element in reverse order gives '92h238'.
Q: 9, 15, ['P', 'g', '8643', '4171', 'X', '1037', 'L', '8199', '5881', 'g', '8579', '2317', '2431', '6519', 'K', '1359', '7153', 'x', 'C', 'h', 'g', '129', '7653', '5459', '6305', '4349', 'F', 'M', '3985']
A:
K6519243123178579g5881