interface A
{
    public abstract int show();
}
interface B
{
    public abstract double show();
}
abstract class C
{
    public static final int NUM = 3;
    public abstract void show();
}

class D extends C implements A,B
{
public void show()
{

}

public int show()
{
    return 0;
}

public double show()
{
    return 1.1;
}
}