h1 -> X X h4 X X h7 X X X X h12 h13 h14 h15 
h2 -> X X X X X X X X X X X X X X 
h3 -> X X X X X X X X X X X X X X 
h4 -> h1 X X X X h7 X X X X h12 h13 h14 h15 
h5 -> X X X X h6 X X X X X X X X X 
h6 -> X X X X h5 X X X X X X X X X 
h7 -> h1 X X h4 X X X X X X h12 h13 h14 h15 
h8 -> X X X X X X X h9 h10 h11 X X X X 
h9 -> X X X X X X X h8 h10 h11 X X X X 
h10 -> X X X X X X X h8 h9 h11 X X X X 
h11 -> X X X X X X X h8 h9 h10 X X X X 
h12 -> h1 X X h4 X X h7 X X X X h13 h14 h15 
h13 -> h1 X X h4 X X h7 X X X X h12 h14 h15 
h14 -> h1 X X h4 X X h7 X X X X h12 h13 h15 
h15 -> h1 X X h4 X X h7 X X X X h12 h13 h14