public class Elem {
    private int number;
    private static int count = 0;
    private Elem next;
    Elem(int number){
        this.number = number;
        count++;
        next = this;
    }
    public int getNumber(){
        return number;
    }
    public int getCount(){
        return count;
    }
    private boolean checkLength(){
        return count > 0;
    }
    public void insertAfter(Elem x){

    }
}