public override void ExitRule(IParseTreeListener listener)
        {
            ISicGrammarListener typedListener = listener as ISicGrammarListener;

            if (typedListener != null)
            {
                typedListener.ExitFormatdos(this);
            }
        }
        public override void EnterRule(IParseTreeListener listener)
        {
            ISicGrammarListener typedListener = listener as ISicGrammarListener;

            if (typedListener != null)
            {
                typedListener.EnterFormatuno(this);
            }
        }