using Convention;
using Convention.EasySave;
using Convention.RScript;
using Convention.RScript.Variable;
using Convention.RScript.Variable.Attr;
using Convention.RScript.Variable.CStyle;
using System;
using System.IO;
using System.Collections;
using System.Linq;
using System.Threading;

public class Program
{
    static int i = 0;

    static IEnumerator Test1()
    {
        Console.WriteLine(i);
        for(; ; )
        yield return null;
    }

    static IEnumerator Test()
    {
        yield return Test1();
    }

    static void Main(string[] args)
    {
        var ir = Test();
        while (ir.MoveNext()) 
            Thread.Sleep(1000);
    }
}