Dsch 2
SYM  #nor4
BB(-15,0,30,40)
DATE 13.10.1999
TITLE 10 30  #>=1
MODEL 304
VIS 4
PIN(-15,5,0,0)a
PIN(-15,15,0,0)b
PIN(-15,25,0,0)c
PIN(-15,35,0,0)d
PIN(30,20,3.0,1.0)out
LIG(22,20,22,20)
LIG(-15,35,-5,35)
LIG(-15,25,-5,25)
LIG(-15,15,-5,15)
LIG(-15,5,-5,5)
LIG(-5,0,-5,40)
LIG(-5,40,20,40)
LIG(20,40,20,0)
LIG(20,0,-5,0)
LIG(24,20,30,20)
VLG nor nor4(out,d,c,b,a);
FSYM