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public class Main 
{
    public static void main(String[] args) 
    {
        Tier kater = new Katze ("Felix");
        Tier katze = new Katze ("Molly");
        kater.verstaendigen();
        katze.verstaendigen();
    }
}

abstract class Tier
{
    private String name;
    abstract public void verstaendigen();
    
    
    public Tier (String name)
    {
        this.name=name; 
    }

    public String getName()
    {
        return name; 
    }
}

class Katze extends Tier
{
    public Katze (String name)
    {
        super(name);
    }

    public void verstaendigen()
    {
        System.out.println(getName() + " macht Miau");
    }
}