| \begin{scope}[node distance=0.75cm] | |
| 
 | |
| \node (DoDo4) [inner xsep=0.01cm, inner ysep=0.03cm] at (0, 0) {@}; | |
| 
 | |
| \node (TimesAp) | |
|   [xshift=0.25cm, inner xsep=0.01cm, inner ysep=0.03cm, below of=DoDo4, left of=DoDo4] | |
|   {@}; | |
| 
 | |
| \node (Times) | |
|   [xshift=0.25cm, inner xsep=0.01cm, inner ysep=0.03cm, below of=TimesAp, left of=TimesAp] | |
|   {$+$}; | |
| 
 | |
| \node (8)  | |
|   [xshift=-0.5cm, inner xsep=0.01cm, inner ysep=0.03cm, below of=DoDo4, right of=DoDo4, yshift=-0.75cm] | |
|   {8}; | |
| 
 | |
| \draw[->] (DoDo4)   to (TimesAp); | |
| \draw[->] (TimesAp) to (Times); | |
| \draw[->] (TimesAp) |- (8); | |
| \draw[->] (DoDo4)   to (8); | |
| 
 | |
| \end{scope}
 |