
\draw (5,1) circle (1ex);
\draw (5,0.9) node[below]{4-4-2-2};
\draw (3.5,2) circle (1ex);
\draw (3.6,2) node[right]{5-5-3-1};
\draw[shorten >=1ex,shorten <=1ex,-] (3.5,2) -- (5,1);
\draw (2,1) circle (1ex); % node[below]{4-4-4-0};
\draw (2,0.9) node[below]{4-4-4-0};
\draw[shorten >=1ex,shorten <=1ex,-] (3.5,2) -- (2,1);
\draw (6.5,2) circle (1ex);
\draw (6.6,2) node[right]{5-3-3-3};
\draw[shorten >=1ex,shorten <=1ex,-] (5,1) -- (6.5,2);
\draw (3.5,4) circle (1ex);
\draw (3.6,4) node[right]{6-4-2-0};
\draw[shorten >=1ex,shorten <=1ex,-] (3.5,2) -- (3.5,4);
\draw (6.5,4) circle (1ex);
\draw (6.6,4) node[right]{6-2-2-2};
\draw[shorten >=1ex,shorten <=1ex,-] (6.5,2) -- (6.5,4);
\draw (5,5) circle (1ex);
\draw (5.1,5) node[right]{7-3-3-1};
\draw[shorten >=1ex,shorten <=1ex,-] (3.5,4) -- (5,5);
\draw (5,7) circle (1ex);
\draw (5.1,7) node[right]{8-2-2-0};
\draw[shorten >=1ex,shorten <=1ex,-] (5,7) -- (5,5);
\draw[shorten >=1ex,shorten <=1ex,-] (5,5) -- (6.5,4);
\draw (3.5,8) circle (1ex);
\draw (3.6,8) node[right]{9-3-1-1};
\draw[shorten >=1ex,shorten <=1ex,-] (5,7) -- (3.5,8);

\draw (2,5) circle (1ex);
\draw (2.1,5) node[right]{7-5-1-1};
\draw[shorten >=1ex,shorten <=1ex,-] (3.5,4) -- (2,5);
