using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        string string1 = "CZSczs";

        string string2 = "ČŽŠčžš";

​

        if(String.Compare(string1, string2, CultureInfo.CurrentCulture, CompareOptions.IgnoreNonSpace) == 0)

        {

        Console.WriteLine("same");

        }

        else

        {

        Console.WriteLine("not same");

        }

    }

}