mu 1 2 3 mu 3 2 4 mu 3 4 5 mu 3 5 6 mu 6 3 7 mu 7 4 8 mu 3 8 9 mu 2 9 10 pwr 7 10 2 pwr 7 4 7 iv 7 8 mu 8 2 9 mu 9 7 2