public struct User
        {
            string Name;
            string Surname;
            string Login;
            string Password;
            string secretCode;

            public User(string Name, string Surname, string Login, string Password, string secretCode)
            {
                this.Name = Name;
                this.Surname = Surname;
                this.Login = Login;
                this.Password = Password;
                this.secretCode = secretCode;

            }

           public static string nameReturn(User usrname)
            {
                return usrname.Name;
            }
            public static string surnameReturn(User usrname)
            {
                return usrname.Surname;
            }
            public static string loginReturn(User usrname)
            {
                return usrname.Login;
            }

            public static string passwordReturn(User usrname)
            {
                return usrname.Password;
            }
            public bool Auth(string login, string password)
            {
                if (this.Login == login && this.Password == password)
                {
                    return true;
                }
                else return false;
            }
            public string secretcodeReturn()
            {
                if (Auth(Login, Password))
                {

                }
            }
        }