1

        public bool check_combinations()
        {

            HashSet<string> groups_hs = new HashSet<string>();
            int number_combinations = 0;
            for (int i = 0; i < this.groups.Count; ++i)
                for (int j = 0; j < i; ++j)
                    for (int k = 0; k < j; ++k)
                            number_combinations += this.phrases[this.groups[i]].Count * this.phrases[this.groups[j]].Count * this.phrases[this.groups[k]].Count;

            Console.WriteLine("Возможных комбинаций:"+ number_combinations);

            if (number_combinations >= this.number_name)
                return true;
            else
            {
                Console.WriteLine("Возможных комбинаций меньше чем имен");
                return false;
            }

        }