using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var chars = GetCharacters(@"sdf

asdf😀123👨•👩•👧•👦");

        foreach(var ch in chars)

        {

            Console.WriteLine(ch);

        }

    }

    public static List<string> GetCharacters(string text)

    {

        char[] ca = text.ToCharArray();

        List<string> characters = new List<string>();

        for (int i = 0; i < ca.Length; i++)

        {

            char c = ca[i];

            if (c > 65535)

            {

                continue;

            }

            if (char.IsHighSurrogate(c))

            {

                i++;

                characters.Add(new string(new[] { c, ca[i] }));

            }

            else

                characters.Add(new string(new[] { c }));

        }

        return characters;

    }

}