using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.IO;

namespace Lizenstest_1
{
    class Program
    {
        

        static void Main(string[] args)
        {
            //generate first Block
            Random Rnd = new Random();
            int r1 = Rnd.Next(1000, 9999);
            String firstBlock = r1.ToString();  //first Block


            //gernerate second Block
            string string_r1 = r1.ToString();
            int quersumme_r1 = 0;
            List<int> tempList = new List<int>();
            foreach (char c in string_r1)
            {
                tempList.Add(Convert.ToInt32(c.ToString()));
            }
            foreach (int i in tempList)
            {
                quersumme_r1 = quersumme_r1 + i;
            }

            String string_quersumme_r1 = quersumme_r1.ToString();
            int r2 = 0;
            if (string_quersumme_r1.Length == 1)
            {
                r2 = Rnd.Next(100, 999);
            }
            else if (string_quersumme_r1.Length == 2)
            {
                r2 = Rnd.Next(10, 99);
            }
            String string_r2 = string_quersumme_r1 + r2.ToString();
            String secondBlock = string_r2;  //second Block

            //generate third Block
            int r3 = r1 + quersumme_r1;
            string string_r3 = r3.ToString();
            int quersumme_r3 = 0;
            List<int> tempList_r3 = new List<int>();
            foreach (char c in string_r3)
            {
                tempList_r3.Add(Convert.ToInt32(c.ToString()));
            }
            foreach (int i in tempList_r3)
            {
                quersumme_r3 = quersumme_r3 + i;
            }

            String string_quersumme_r3 = quersumme_r3.ToString();
            r3 = 0;
            if (string_quersumme_r3.Length == 1)
            {
                r3 = Rnd.Next(100, 999);
            }
            else if (string_quersumme_r3.Length == 2)
            {
                r3 = Rnd.Next(10, 99);
            }
            string_r3 = string_quersumme_r3 + r3.ToString();
            String thirdBlock = string_r3;  //second Block

            Console.WriteLine(firstBlock + "-" + secondBlock + "-" + thirdBlock);
            



           
            



        }
    }
}