mu 1 2 3 mu 3 2 4 pwr 18 4 5 mu 2 2 6 mu 3 4 7 mu 4 3 8 mu 7 8 3 iv 3 4 mu 6 4 2 mu 6 3 4 mu 2 4 6 pwr 9 6 4 mu 5 1 2 mu 3 4 1