private double WalkN(LabaExcelParser.ExpressionContext context, int idx)
 {
     try
     {
         return(Visit(context.GetRuleContext <LabaExcelParser.ExpressionContext>(idx)));
     }
     catch (NullReferenceException) { return(1.0101); }
 }
 private double WalkRight(LabaExcelParser.ExpressionContext context)
 {
     return(Visit(context.GetRuleContext <LabaExcelParser.ExpressionContext>(1)));
 }