std::cout<<"("<<flowG.tail(e)<< "-"<<flow.get(e)<<"->"<<flowG.head(e)<<") ";

       std::cout<<"("<<flowG.tail(e)<< "-"<<flow.get(e)<<"->"<<flowG.head(e)<<") ";

     }

     }

     std::cout<<std::endl;

     std::cout<<std::endl;

     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

   }

   }

   {

   {

     std::list<NodeIt> S;

     std::list<NodeIt> S;

     S.push_back(s); S.push_back(v3);

     S.push_back(s); S.push_back(v3);

     std::list<NodeIt> T;

     std::list<NodeIt> T;

     T.push_back(t);

     T.push_back(t);

       std::cout<<"("<<flowG.tail(e)<< "-"<<flow.get(e)<<"->"<<flowG.head(e)<<") ";

       std::cout<<"("<<flowG.tail(e)<< "-"<<flow.get(e)<<"->"<<flowG.head(e)<<") ";

     }

     }

     std::cout<<std::endl;

     std::cout<<std::endl;

     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

   }

   }

   return 0;

   return 0;

 }

 }