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7 101 [shape="none", label="101", pos="11.7320508076,9!",fontsize=20,fixedsize=true,width=0.5,height=0.3];
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10 000:sw -> 000:nw [arrowhead="vee"];
11 001 -> 101 [arrowhead="vee"];
12 001:sw -> 001:nw [arrowhead="vee"];
13 010 -> 010 [arrowhead="vee"];
14 010 -> 011 [arrowhead="vee"];
15 010 -> 000 [arrowhead="vee"];
16 011 -> 011 [arrowhead="vee"];
17 011 -> 111 [arrowhead="vee"];
18 011 -> 001 [arrowhead="vee"];
19 100 -> 000 [arrowhead="vee"];
20 100 -> 101 [arrowhead="vee"];
21 100:sw -> 100:nw [arrowhead="vee"];
22 101 -> 111 [arrowhead="vee"];
23 101 -> 101:nw [arrowhead="vee"];
24 110 -> 111 [arrowhead="vee"];
25 110 -> 010 [arrowhead="vee"];
26 110 -> 100 [arrowhead="vee"];
27 111 -> 111 [arrowhead="vee"];
28 111 -> 011 [arrowhead="vee"];