main()
{
    int x1,x2,y1,y2,n;
    cls(1);
    n=250;
    while(n!=0)
    {
        x1=(rand()/52)+4;
        x2=(rand()/52)+4;
        y1=0-((rand()/69)+3);
        y2=0-((rand()/69)+3);
        line(x1,y1,x2,y2);
        n--;
    }
}