mu 1 2 3 mu 3 2 4 mu 3 4 5 mu 3 5 6 mu 5 6 7 mu 6 5 8 mu 7 8 5 mu 5 4 2 pwr 7 3 1 pwr 16 8 3 iv 3 4 mu 4 1 5 mu 5 3 1 pwr 18 7 3 iv 3 4 mu 4 2 5 mu 5 3 2