using System;
using System.IO;
using System.Globalization;
 
public class Test
{
	public static void Main()
	{
		var text = "1234🔹67890";
		var maxChars = 6;
		Console.WriteLine("maxChars: {0}", maxChars);
        var newStr = new StringInfo(text).SubstringByTextElements(0, maxChars);
		Console.WriteLine("newStr.Length: {0}, LengthInTextElements: {1}, maxChars: {2}",
			newStr.Length, new StringInfo(newStr).LengthInTextElements, maxChars);
	}
}

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