using System;

public class Program

{

    /// 1234

    /// 123

    /// 12

    /// 1

    private static void QuestionOne()

    {

        Console.WriteLine("1234");

        Console.WriteLine("123");

        Console.WriteLine("12");

        Console.WriteLine("1");

    }

    ///    1

    ///   12

    ///  123

    /// 1234

    private static void QuestionTwo()

    {

        Console.WriteLine("   1");

        Console.WriteLine("  12");

        Console.WriteLine(" 123");

        Console.WriteLine("1234");

    }

    ///    1

    ///   121

    ///  12321

    /// 1234321

    private static void QuestionThree()

    {

        Console.WriteLine("   1");

        Console.WriteLine("  121");

        Console.WriteLine(" 12321");

        Console.WriteLine("1234321");

    }

    public static void Main()

    {

        Console.WriteLine("Question 1: \n");

        QuestionOne();

        Console.WriteLine("\n############\n");

        Console.WriteLine("Question 2: \n");

        Console.WriteLine();

        QuestionTwo();

        Console.WriteLine("\n############\n");

        Console.WriteLine("Question 3: \n");

        Console.WriteLine();

        QuestionThree();

        Console.WriteLine("\n############\n");

    }

}