using System;

public class Program

{

    class proyek

    {

        public string namaproyek;

        public string durasiproyek;

        public string skalaproyek;

        public proyek()

        {

            namaproyek = "proyek pembuka lahan";

            durasiproyek = "2 hari";

            skalaproyek = "internasional";

        }

        class perusahaan

        {   

            public string namaPt = "pt amirta";

            public string umurPt = "2 tahun";

            public string skalaPt = "nasional";

        }

    }

    public void identitas()

    {

        Console.WriteLine("rizki bagus pradana");

    }

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}