#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Input.H>
#include <FL/Fl_Output.H>
typeof(Fl::run()) main(void) {
Fl_Window *window = 0;
window = new Fl_Window(1000,800, "hi");
window->show();
return ( Fl::run() );
}