public class Liste {
    class Node {
        Node n;
        String d;
    }
    Node start;
    int str = 0;

    String get(int i){
        if (str <= i){
            return null;
        }
        Node t = start;
        for (int j = 0; j < i; j++) {
            t = t.n;
        }
        return t.d;
    }


    void add(String d){
        Node t = start;

        if (t == null){
            start = new Node();
            start.d = d;
            str++;
            return;
        }

        while(t.n != null){
            t = t.n;
        }
        t.n = new Node();
        t.n.d = d;
        str++;
    }

    int str(){
        return str;
    }


    public static void main(String[] args) {
        Liste l = new Liste();
        l.add("yoo");
        l.add("heid");
        System.out.println(l.get(1));
    }
}