public class Umgebung {

  public static void main (String[] args) {
    ExtIntSequenz e = new ExtIntSequenz();
    System.out.println( e.create() );
    System.out.println( e.stock(4, e.create()) );
    System.out.println( e.stock(1, e.stock(4, e.create())) );
    System.out.println( e.stock(3, e.stock(1, e.stock(4, e.create()))) );
    System.out.println(
       e.stock(2, e.stock(3, e.stock(1, e.stock(4, e.create())))) );
    System.out.println(
       e.stock(4, e.stock(2, e.stock(3, e.stock(1, e.stock(4, e.create()))))) );

    System.out.println( e.istAnfang( e.create(), e.stock(4, e.create()) ) );
    System.out.println( e.istAnfang( e.stock(4, e.create()), e.create() ) );
    System.out.println(
            e.istAnfang( e.stock(1, e.stock(2, e.create())),
                         e.stock(1, e.stock(2, e.stock(4, e.create()))) ) );
    System.out.println(
            e.istAnfang( e.stock(2, e.stock(4, e.create())),
                         e.stock(1, e.stock(2, e.stock(4, e.create()))) ) );
    System.out.println(
       e.istTeilsequenz( e.stock(1, e.stock(2, e.create())),
                         e.stock(1, e.stock(2, e.stock(4, e.create()))) ) );
    System.out.println(
       e.istTeilsequenz( e.stock(2, e.stock(4, e.create())),
                         e.stock(1, e.stock(2, e.stock(4, e.create()))) ) );
    System.out.println(
       e.istTeilsequenz( e.stock(1, e.stock(4, e.create())),
                         e.stock(1, e.stock(2, e.stock(4, e.create()))) ) );

    System.out.println(
       e.minimum(  e.stock(2, e.stock(3, e.stock(1, e.stock(4, e.create())))) ) );
    System.out.println(
       e.minimum2(  e.stock(2, e.stock(3, e.stock(1, e.stock(4, e.create())))) ) );
   }
    
}