print traingle shape characters in c#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication29

{

    class Program

    {

        static void Main(string[] args)

        {

            char ch = 'A';

            for (int i = 1; i < 5; i++)

            {

                for(int j=1;j<=i;j++)

                {

                    Console.Write(ch + " ");

                    ch++;

                }

                Console.WriteLine();

            }

        }

    }

}

output screenshot: