using System;

public class Program

{       

        public static void Main()

        {

        }

}

​

public class IntNode

    { 

         private IntNode next;

         private int value;

         public IntNode (IntNode node)

         {

             value=node.value;

             next=node.next;

         }

        public IntNode (int value)

        {

            this.value=value;

            this.next=null;

        }

        public IntNode (int value,IntNode next)

        {

            this.value=value;

            this.next=next;

        }

        public IntNode GetNext()

        {

            return next;

        }

        public int GetValue()

        {

            return this.value;

        }

         public void setNext (IntNode next)

        {

            this.next=next;

        }

        public void setvalue(int value)

        {

            this.value=value;

        }

        override public string ToString()

        {

            return value.ToString();

        }

        public bool Hasnext()

        {

            return (next!=null);

        }

        public bool Equal (IntNode node)

        {

            return (node.value == value);

        }   

}   

    public class intlist

    {

        private IntNode head;

        private IntNode tail;

    }

​