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\draw[draw=foldgray,fill=white,line width=.45pt] (6.545,-0.23) circle (1.45pt);
\node[anchor=east,font=\tiny] at (5.46,-0.46) {\texttt{0010}};
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\node[anchor=east,font=\tiny] at (5.46,-0.69) {\texttt{0011}};
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\draw[diagram arrow] (6.70,.05) -- (7.60,.05) node[midway,above=5pt,font=\scriptsize] {$b_3\leftarrow0$};
\node[align=center,font=\small\bfseries] at (8.88,1.0) {$16$\\point images};
\node[anchor=east,font=\tiny] at (8.26,-0.00) {\texttt{0000}};
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\draw[draw=foldorange,fill=foldorange,line width=.45pt] (8.535,-0.23) circle (1.45pt);
\draw[draw=foldgreen,fill=foldgreen,line width=.45pt] (8.670,-0.23) circle (1.45pt);
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\draw[diagram arrow] (9.50,.05) -- (10.40,.05) node[midway,above=5pt,font=\scriptsize] {$b_4\leftarrow0$};
\node[align=center,font=\small\bfseries] at (11.68,1.0) {$8$\\point images};
\node[anchor=east,font=\tiny] at (11.06,-0.00) {\texttt{0000}};
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\draw[draw=foldgreen,fill=foldgreen,line width=.45pt] (11.470,-0.00) circle (1.45pt);
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\draw[draw=foldblue,fill=white,line width=.45pt] (11.740,-0.00) circle (1.45pt);
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\draw[draw=foldgreen,fill=white,line width=.45pt] (12.010,-0.00) circle (1.45pt);
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\node[align=center,text=foldblue,font=\small] at (11.67,-1.2) {eight points\\that cannot merge};
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\node[anchor=west,font=\scriptsize] at (-.65,-4.10) {Protected coordinate $d\in D=\mathbb F_2^3$:};
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\node[anchor=west,font=\scriptsize] at (5.10,-4.10) {\texttt{000}};
\draw[draw=foldorange,fill=foldorange,line width=.5pt] (5.93,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (6.03,-4.10) {\texttt{001}};
\draw[draw=foldgreen,fill=foldgreen,line width=.5pt] (6.86,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (6.96,-4.10) {\texttt{010}};
\draw[draw=foldgray,fill=foldgray,line width=.5pt] (7.79,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (7.89,-4.10) {\texttt{011}};
\draw[draw=foldblue,fill=white,line width=.5pt] (8.72,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (8.82,-4.10) {\texttt{100}};
\draw[draw=foldorange,fill=white,line width=.5pt] (9.65,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (9.75,-4.10) {\texttt{101}};
\draw[draw=foldgreen,fill=white,line width=.5pt] (10.58,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (10.68,-4.10) {\texttt{110}};
\draw[draw=foldgray,fill=white,line width=.5pt] (11.51,-4.10) circle (1.7pt);
\node[anchor=west,font=\scriptsize] at (11.61,-4.10) {\texttt{111}};
\end{tikzpicture}