#include <CGAL/basic.h>
#include <CGAL/Homogeneous.h>
#include <CGAL/Nef_polyhedron_3.h>
#include <CGAL/IO/Nef_polyhedron_iostream_3.h>
#include <CGAL/IO/Qt_widget_Nef_S2.h>
#include <qapplication.h>
int main(int argc, char* argv[]) {
typedef Nef_polyhedron_3::Vertex_const_iterator Vertex_const_iterator;
typedef Nef_polyhedron_3::Nef_polyhedron_S2 Nef_polyhedron_S2;
Nef_polyhedron_3 N;
std::cin >> N;
Nef_polyhedron_S2 S(N.get_sphere_map(v));
QApplication a(argc, argv);
a.setMainWidget(w);
w->show();
return a.exec();
}