digraph "sumprod" {
rankdir="LR";
remincross=true;
n1 [ shape=octagon, label="prod", color="black", fontcolor="black" ];
v0 [ label="$3_Y" ];
v1 [ label="c" ];
c5 [ shape=record, label="{{<p2> A|<p3> B}|$4\n$mul|{<p4> Y}}" ];
c5:p4:e -> n1:w [color="black", style="setlinewidth(3)", label=""];
v0:e -> c5:p2:w [color="black", style="setlinewidth(3)", label=""];
v1:e -> c5:p3:w [color="black", style="setlinewidth(3)", label=""];
};