using System;

​

struct Counter

{

    int ivalue;

    DateTime dvalue;

​

    public override string ToString() {

        ivalue++;

        return ivalue.ToString();

    }

}

​

class Program

{

    static void Test<T>() where T: new() {

        T x = new T();

        Console.WriteLine(x.ToString(), "|", DateTime.Now.ToString());

        Console.WriteLine(x.ToString(), "|", DateTime.Now.ToString());

        Console.WriteLine(x.ToString(), "|", DateTime.Now.ToString());

    }

​

    static void Main() {

        Test<Counter>();

    }

}