using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var languages = new List<Language> {

            new Language { Name = "C#", SingleLineCommentMarker = "//" },

            new Language { Name = "Perl", SingleLineCommentMarker = "#" },

            new Language { Name = "TypeScript", SingleLineCommentMarker = "//" },

        };

        var opinions = new List<Opinion> {

            new Opinion { Name = "C#", Evaluation = "Sucks" },

            new Opinion { Name = "TypeScript", Evaluation = "Rocks" },

        };

        foreach (var lang in 

                 from Language l in languages 

                 join Opinion o in opinions on l.Name equals o.Name

                 where l.SingleLineCommentMarker == "//" 

                 select new {

                     Name = l.Name,

                     SLC = l.SingleLineCommentMarker,

                     op = o.Evaluation,

                 }

        ) { Console.Write("{0} {1} {2} \n", lang.Name, lang.SLC, lang.op); }

    }

    private class Language {

        public string Name { get; set; }

        public string SingleLineCommentMarker { get; set;}

    }

    private class Opinion {

        public string Name { get; set; }

        public string Evaluation { get; set; }

    }

}