using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var value = "•Ç⌂, ??î or ôu🕧� n☁i✑💴++$-💯♓!🇪🚑🌚‼⁉4⃣od;/⏬'®;😁☕😁:☝)😁😁///😍1!@#";

        var result = Regex.Replace(value, @"[^\u0020-\u007E\u00A0-\u00FF]+", string.Empty);

        Console.WriteLine(result);

    }

}