A {
 (@ void g_print() { 
           PrintingVisitor pv = new PrintingVisitor();  
 this.t(pv);   
}
@)
traversal t(PrintingVisitor pv) {to *;}
}
Main {
(@
 static public void main(String args[])
                              throws Exception {
A a = A.parse(System.in);
 a.g_print(); 
 System.out.println("  ");  
}
     @)
   }
PrintingVisitor{
before A (@ System.out.print(" a "); @)
after A (@ System.out.print(" enda "); @)
before B (@ System.out.print(" ( "); @)
after B (@ System.out.print(" ) "); @)
before X (@ System.out.print(" x "); @)
after X (@ System.out.print("  "); @)
before Y (@ System.out.print("  "); @)
before D (@ System.out.print(" d " + host.get_text() + "   "); @)
after D (@ System.out.print("  "); @)
before E (@ System.out.print(" e " + host.get_integer().intValue() + "   "); @)
after E (@ System.out.print("  "); @)
before Main (@ System.out.print("  "); @)
before PrintingVisitor (@ System.out.print("  "); @)
   }