#include <windows.h>

int main()
{
    for (;;)
    {
        mouse_event(2,x1,y1,0,0);
        mouse_event(4,x1,y1,0,0);
        mouse_event(2,x2,y2,0,0);
        mouse_event(4,x2,y2,0,0);
        Sleep(1500);
    }
}