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