using System;

public class Program

{

    public static void Main()

    {

        public class Node<T>

    {

        private T value;

        private Node<T> next;

​

        public Node(T value)

        {

            this.value = value;

            next = null;

        }

​

        public Node(T value, Node<T> next)

        {

            this.value = value;

            this.next = next;

        }

​

        public T GetValue()

        {

            return value;

        }

​

        public Node<T> GetNext()

        {

            return next;

        }

​

        public void SetValue(T value)

        {

            this.value = value;

        }

​

        public void SetNext(Node<T> next)

        {

            this.next = next;

        }

        public override string ToString()

        {

            return value.ToString();

        }

    }

    class Couple

    {

        //תכונות

        private int num;

        private int count;

        //בונה

        public Couple(int num, int count)

        {

            this.num = num;

            this.count = count;

        }

        //Get

        public int GetNum() { return num; }

        public int GetCount() { return count; }

        //Set

        public void SetNum(int num) { this.num = num; }

        public void SetCount(int count) { this.count = count; }

        //To String

        public override string ToString()

        {

            return ("num: " + this.num + " count: " + this.count);

        }

    }

    }

}