class A {
  protected B b;
  public B get_b() { return b;   }
  public void set_b(B new_b) { b = new_b;   }
   A() { super();   }
  public A(B b) {
    super();
    set_b(b);
    }
  public static A parse(java.io.InputStream in) throws ParseException { return new Parser(in)._A();   }
  public static A parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
  public static void main(String[] args) throws Exception {
    A m = parse(System.in);
    System.out.println("parsed OK");
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_b(this, b);
    b.universal_trv0(_v_);
    _v_.after_b(this, b);
    universal_trv0_aft(_v_);
  }

}
 class B {
  protected C c;
  public C get_c() { return c;   }
  public void set_c(C new_c) { c = new_c;   }
  protected D d;
  public D get_d() { return d;   }
  public void set_d(D new_d) { d = new_d;   }
  protected E e;
  public E get_e() { return e;   }
  public void set_e(E new_e) { e = new_e;   }
  protected F f;
  public F get_f() { return f;   }
  public void set_f(F new_f) { f = new_f;   }
   B() { super();   }
  public B(C c, D d, E e, F f) {
    super();
    set_c(c);
    set_d(d);
    set_e(e);
    set_f(f);
    }
  public static B parse(java.io.InputStream in) throws ParseException { return new Parser(in)._B();   }
  public static B parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_c(this, c);
    c.universal_trv0(_v_);
    _v_.after_c(this, c);
    _v_.before_d(this, d);
    d.universal_trv0(_v_);
    _v_.after_d(this, d);
    _v_.before_e(this, e);
    e.universal_trv0(_v_);
    _v_.after_e(this, e);
    _v_.before_f(this, f);
    f.universal_trv0(_v_);
    _v_.after_f(this, f);
    universal_trv0_aft(_v_);
  }

}
 class C {
  public C() {
    super();
    }
  public static C parse(java.io.InputStream in) throws ParseException { return new Parser(in)._C();   }
  public static C parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    universal_trv0_aft(_v_);
  }

}
 class D {
  protected G g;
  public G get_g() { return g;   }
  public void set_g(G new_g) { g = new_g;   }
  protected H h;
  public H get_h() { return h;   }
  public void set_h(H new_h) { h = new_h;   }
  protected A a;
  public A get_a() { return a;   }
  public void set_a(A new_a) { a = new_a;   }
   D() { super();   }
  public D(G g, H h, A a) {
    super();
    set_g(g);
    set_h(h);
    set_a(a);
    }
  public static D parse(java.io.InputStream in) throws ParseException { return new Parser(in)._D();   }
  public static D parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_g(this, g);
    g.universal_trv0(_v_);
    _v_.after_g(this, g);
    _v_.before_h(this, h);
    h.universal_trv0(_v_);
    _v_.after_h(this, h);
    _v_.before_a(this, a);
    a.universal_trv0(_v_);
    _v_.after_a(this, a);
    universal_trv0_aft(_v_);
  }

}
 class E {
  protected F f;
  public F get_f() { return f;   }
  public void set_f(F new_f) { f = new_f;   }
   E() { super();   }
  public E(F f) {
    super();
    set_f(f);
    }
  public static E parse(java.io.InputStream in) throws ParseException { return new Parser(in)._E();   }
  public static E parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_f(this, f);
    f.universal_trv0(_v_);
    _v_.after_f(this, f);
    universal_trv0_aft(_v_);
  }

}
 class F {
  public F() {
    super();
    }
  public static F parse(java.io.InputStream in) throws ParseException { return new Parser(in)._F();   }
  public static F parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    universal_trv0_aft(_v_);
  }

}
 class G {
  public G() {
    super();
    }
  public static G parse(java.io.InputStream in) throws ParseException { return new Parser(in)._G();   }
  public static G parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    universal_trv0_aft(_v_);
  }

}
 class H {
  protected D d;
  public D get_d() { return d;   }
  public void set_d(D new_d) { d = new_d;   }
   H() { super();   }
  public H(D d) {
    super();
    set_d(d);
    }
  public static H parse(java.io.InputStream in) throws ParseException { return new Parser(in)._H();   }
  public static H parse(String s) {
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_d(this, d);
    d.universal_trv0(_v_);
    _v_.after_d(this, d);
    universal_trv0_aft(_v_);
  }

}