using System;

using System.Linq;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        List<string> Teachers_Group = new List<string>

        {

            "-RO-ANSATTE",

            "-RO-GJESTEANSATTE"

        };

        List<string> domainuser_groups = new List<string>

        {

            "BAR",

            "BAZ",

            "XXX-RO-GJESTEANSATTE"

        };

        bool amITeacher = domainuser_groups.Where(k => Teachers_Group.Any(t => Regex.IsMatch(k, @"\w{3}\" + t))).Any();

        amITeacher.Dump();

    }

}