mu 1 2 3 mu 3 2 4 mu 3 4 5 mu 3 3 6 mu 6 6 7 mu 5 7 1 mu 4 4 6 mu 5 5 7 mu 3 7 8 mu 8 8 9 mu 8 9 7 mu 7 6 5 mu 6 6 8 mu 8 4 7 mu 7 5 2