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, 15, ['Q', '7449', '1077', 'F', '8935', '7385', 'P', 'w', '9977', '4887', '7521', 'U', '8233', '3357', '4119']

411933578233U752148879977