public static UserU operator +(UserU a, UserU b)// перегрузка Ђ+ї
        {
            UserU ob = new UserU();

            ob.data = a.data + b.data;
            return(ob);
        }
        static void Main(string[] args)
        {
            input();

            UserU u1 = new UserU();

            u1.data = 10;
            UserU u2 = new UserU();

            u2.data = 10;
            UserU u3;

            Console.Read();
        }