public interface Par <K, V> {
    public K hentNokkel ();
    public V hentVerdi ();
}

class OrdnetPar<K, V> implements Par<K, V> {
    K key;
    V value;

    public OrdnetPar(K key, V value){
        this.key = key;
        this.value = value;
    }

    public K hentNokkel (){
        return key;
    }

    public V hentVerdi (){
        return value;
    }
}