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.
10, 11, ['6937', '7033', 'P', '7779', '5517', 'W', '8773', '9909', '8241', 'U', 'g', 'I', 'b', 'Y', 'H', 'K', 'V', '5549', '8019', 'C', 'W', '9643', 'E']