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