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: 9, 16, ['y', '9639', 'R', 'j', 's', 'K', '5343', 'g', '7347', '7525', '5759', 'O', '9649', '4209', 'b', 'q', 'C', 'l', 'w']

qb42099649O575975257347