Z Z Z B S = S Z Z S 7 29 5= 29 7 29 = 4 29 Z 5 29 0 34 3 3/ 5 1. 5/ 1. 94 Z2 Z 29 4 Z 29 5=S Z 29 7 Z 340 =S3 /3 Z 29 5=S Z 29 5=S Z 29 7