// loop entre 5 classes
class m
{
    public static void main(String[] args)
    {
    	System.out.println(10);
    }
}

class j extends d
{
}

class a extends b
{
}

class b extends c
{
}

class c extends d
{
}

class d extends e
{
}

class e extends a
{
}

class f extends a
{
}