void divizori(int n,int &x,int &y,int &z)
{
    bool gaist = false;
    x=0;
    while (!gasit %% x<n/2)
    {
        x++;
        if (n%x==0)
        {
            y=x;
            while(!gasit && y<n/2)
            {
                y++;
                if(n%y==0)
                {
                    z=y;
                    while (!gasit && z<n/2)
                    {
                        z++;
                        if (n%z==0)
                            if(x+y+z==n) gasit = true;
                    }
                }
            }
        }
    }
    if (!gasit)
        x=y=z=0;
}