Definition: 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: 6, 15, ['9601', '1315', 'x', '4625', 'i', 'v', 'n', '9129', '8793', 'R', 'M', '801', 'S', '8985', '835', 't', '329', 'X', 'z', 'G']

8358985S801MR87939129nv