Hopefully this will help: http://www.youtube.com/watch?v=TVnaI2-sim4 7 7 -6 6 -5 5 7 7 -6 6 -5 5 7 -6 6 -6 7 7 5 5 -2 2 -1 -6 6 -5 -7 7 5 -6 6 -5 -8 7 5 -7 -8 8 6 5 -6 7 6 5 -5 7 7 -6 6 -5 5 7 7 -6 6 -5 5 7 -6 6 -6 7 7 5 5 -2 2 -1 -6 6 -5 -7 7 5 -6 6 -5 -8 7 5 -7 -8 8 6 5 -6 7 6 -5 5