b d g a c f e ,a,b,c,d,e,f,g a,0,0,0,0,1,1,1 b,0,0,0,1,0,0,1 c,0,0,0,0,1,1,1 d,0,1,0,0,0,0,0 e,1,0,1,0,0,0,0 f,1,0,1,0,0,0,1 g,1,1,1,0,0,1,1