mu 1 2 3 mu 3 2 4 mu 3 4 5 mu 3 5 6 mu 6 5 8 mu 3 8 9 mu 9 4 10 mu 10 4 11 mu 3 11 12 mu 12 3 13 mu 13 13 2 pwr 7 4 1 iv 4 5 mu 4 2 6 mu 6 5 2 pwr 7 3 4 iv 4 5 mu 5 1 6 mu 6 4 1