chapter02 cluster_Nodes Start1 Start Con_2 #1 Con_2->Start1 0 Con_3 #2 Con_3->Start1 0 Con_4 #3 Con_4->Start1 0 Mul5 * Mul5->Con_3 1 Mul5->Con_4 2 Con_6 #5 Con_6->Start1 0 Minus7 - Minus7->Con_6 1 Add8 + Add8->Mul5 1 Add8->Minus7 2 Add9 + Add9->Con_2 1 Add9->Add8 2 Return10 Return Return10->Start1 0 Return10->Add9 1