WF5/6S-3 WF6/7S-3 WF7/8S-3 WF8/9S-3 WF5/6S-5 WF6/7S-5 WF7/8S-5 WF8/9S-5 WF6/7S-7 WF7/8S-7 WF8/9S-7 WF6/7S-8 WF7/8S-8 WF8/9S-8 1 2 3 4 5 6 7 8 9 10