using System;

public class Program

{

    public static void Main()

    {

        int i = 0;

​

        do

        {

            Console.WriteLine("i = {0}", i);

            int j = i;

            i++;

            do

            {

                Console.WriteLine("j = {0}", j);

                j++;

            } while (j < 2);

        } while (i < 2);

    }

}