extern "C++" {
        namespace std {
      class exception {
   };
      }
        }
          namespace __gnu_cxx {
        template<typename _Tp> class new_allocator {
      public: typedef _Tp& reference;
      template<typename _Tp1> struct rebind {
    typedef new_allocator<_Tp1> other;
    };
      };
        }
          namespace std {
        template<class _CharT> struct char_traits;
        template<typename _Tp> class allocator: public __gnu_cxx::new_allocator<_Tp> {
     };
        template<typename _Tp, typename _Alloc> struct _Vector_base {
      typedef typename _Alloc::template rebind<_Tp>::other _Tp_alloc_type;
      };
        template<typename _Tp, typename _Alloc = std::allocator<_Tp> > class vector : protected _Vector_base<_Tp, _Alloc> {
      typedef _Vector_base<_Tp, _Alloc> _Base;
      typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
      public: typedef _Tp value_type;
      typedef typename _Tp_alloc_type::reference reference;
      long unsigned int size() const {
   }
      reference operator[](long unsigned int __n) {
   }
      };
        template<typename _CharT, typename _Traits, typename _Alloc> class basic_string {
     };
        class locale {
     };
        enum _Ios_Fmtflags {
      _S_boolalpha = 1L << 0, _S_dec = 1L << 1, _S_fixed = 1L << 2, _S_hex = 1L << 3, _S_internal = 1L << 4, _S_left = 1L << 5, _S_oct = 1L << 6, _S_right = 1L << 7, _S_scientific = 1L << 8, _S_showbase = 1L << 9, _S_showpoint = 1L << 10, _S_showpos = 1L << 11, _S_skipws = 1L << 12, _S_unitbuf = 1L << 13, _S_uppercase = 1L << 14, _S_adjustfield = _S_left | _S_right | _S_internal, _S_basefield = _S_dec | _S_oct | _S_hex, _S_floatfield = _S_scientific | _S_fixed, _S_ios_fmtflags_end = 1L << 16 };
        class ios_base {
      public: class failure : public exception {
   };
      typedef _Ios_Fmtflags fmtflags;
      inline fmtflags flags() const {
   }
      };
        template<typename _CharT, typename _Traits> class basic_streambuf {
     };
        template<typename _CharT, typename _Traits> class basic_ios : public ios_base {
     };
        template<typename _CharT, typename _Traits> class basic_ostream : virtual public basic_ios<_CharT, _Traits> {
      public: typedef _CharT char_type;
      typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
      explicit basic_ostream(__streambuf_type* __sb) {
   }
      };
        }
          namespace boost {
        template <class Ch, class Tr = ::std:: char_traits<Ch>, class Alloc = std::allocator<Ch> > class basic_format;
        typedef basic_format<char > format;
        namespace io {
      namespace detail {
    typedef ::std:: locale locale_t;
    template<class Ch, class Tr, class Alloc, class T> basic_format<Ch, Tr, Alloc>& feed (basic_format<Ch,Tr, Alloc>& self, T x);
    }
      }
        }
          namespace mpl_ {
        template< typename T, T N > struct integral_c {
      static const T value = N;
      };
        struct na {
     };
        }
          namespace boost {
        namespace mpl {
      using namespace mpl_;
      }
        template <class T, T val> struct integral_constant : public mpl::integral_c<T, val> {
      typedef integral_constant<bool,false> type;
      };
        namespace mpl {
      template< bool C , typename T1 , typename T2 > struct if_c {
    typedef T2 type;
    };
      template< typename T1 = na , typename T2 = na , typename T3 = na > struct if_ {
    private: typedef if_c< static_cast<bool>(T1::value) , T2 , T3 > almost_type_;
    public: typedef typename almost_type_::type type;
    };
      }
        template< typename T > struct is_reference : ::boost::integral_constant<bool,false> {
     };
        namespace optional_detail {
      template<class T> struct types_when_isnt_ref {
    typedef T * pointer_type;
    };
      template<class T> struct types_when_is_ref {
   };
      struct optional_tag {
   };
      template<class T> class optional_base : public optional_tag {
    typedef types_when_isnt_ref<T> types_when_not_ref;
    typedef types_when_is_ref<T> types_when_ref;
    typedef typename is_reference<T>::type is_reference_predicate;
    typedef typename mpl::if_<is_reference_predicate,types_when_ref,types_when_not_ref>::type types;
    typedef typename types::pointer_type pointer_type;
    };
      }
        template<class T> class optional : public optional_detail::optional_base<T> {
      typedef optional_detail::optional_base<T> base;
      public : typedef optional<T> this_type;
      typedef typename base::pointer_type pointer_type;
      };
        template<class T> inline typename optional<T>::pointer_type get_pointer ( optional<T>& opt ) {
     }
        template < typename MemberType, int UniqueID = 0 > class base_from_member {
      protected: MemberType member;
      template < typename T0 , typename T1 > explicit base_from_member( T0 x0 , T1 x1 ) : member( x0 , x1 ) {
   }
      };
        namespace detail {
      inline int atomic_decrement( int * pw ) {
    return __sync_fetch_and_add( pw, -1 );
    }
      class sp_counted_base {
    int use_count_;
    int weak_count_;
    public: sp_counted_base(): use_count_( 1 ), weak_count_( 1 ) {
    }
    void release() {
    if( atomic_decrement( &use_count_ ) == 1 ) {
    }
    }
    };
      class shared_count {
    private: sp_counted_base * pi_;
    public: shared_count(): pi_(0) {
    }
    template<class P, class D> shared_count(P p, D d): pi_(0) {
    if( pi_ != 0 ) pi_->release();
    }
    };
      }
        template<class T> class shared_ptr {
      public: typedef T element_type;
      template<class Y, class D> shared_ptr(Y * p, D d): px(p), pn(p, d) {
    }
      T * px;
      boost::detail::shared_count pn;
      };
        namespace io {
      template<class Ch, class Tr, class Alloc> class basic_altstringbuf : public ::std::basic_streambuf<Ch, Tr> {
    };
      template <class Ch, class Tr, class Alloc> class basic_oaltstringstream : private base_from_member< shared_ptr< basic_altstringbuf< Ch, Tr, Alloc> > >, public ::std::basic_ostream<Ch, Tr> {
    class No_Op {
    };
    typedef ::std::basic_ostream<Ch, Tr> stream_t;
    typedef boost::base_from_member<boost::shared_ptr< basic_altstringbuf<Ch,Tr, Alloc> > > pbase_type;
    typedef basic_altstringbuf<Ch, Tr, Alloc> stringbuf_t;
    public: typedef Alloc allocator_type;
    basic_oaltstringstream() : pbase_type(new stringbuf_t), stream_t(rdbuf()) {
    }
    basic_oaltstringstream(stringbuf_t * buf) : pbase_type(buf, No_Op() ), stream_t(rdbuf()) {
    }
    stringbuf_t * rdbuf() const {
    }
    };
      namespace detail {
    template<class Ch, class Tr, class Alloc> struct format_item {
    typedef ::std::basic_string<Ch, Tr, Alloc> string_type;
    int argN_;
    string_type res_;
    };
    }
      }
        template<class Ch, class Tr, class Alloc> class basic_format {
      public: typedef Ch CharT;
      typedef std::basic_string<Ch, Tr, Alloc> string_type;
      typedef io::detail::format_item<Ch, Tr, Alloc> format_item_t;
      typedef io::basic_altstringbuf<Ch, Tr, Alloc> internal_streambuf_t;
      explicit basic_format(const Ch* str=__null);
      template<class T> basic_format& operator%(const T& x) {
    return io::detail::feed<CharT, Tr, Alloc, const T&>(*this,x);
    }
      std::vector<format_item_t> items_;
      int cur_arg_;
      internal_streambuf_t buf_;
      boost::optional<io::detail::locale_t> loc_;
      };
        namespace io {
      namespace detail {
    template< class Ch, class Tr, class Alloc, class T> void put( T x, const format_item<Ch, Tr, Alloc>& specs, typename basic_format<Ch, Tr, Alloc>::string_type& res, typename basic_format<Ch, Tr, Alloc>::internal_streambuf_t & buf, io::detail::locale_t *loc_p = __null) {
    basic_oaltstringstream<Ch, Tr, Alloc> oss( &buf);
    }
    template< class Ch, class Tr, class Alloc, class T> void distribute (basic_format<Ch,Tr, Alloc>& self, T x) {
    for(unsigned long i=0;
    i < self.items_.size();
    ++i) {
    if(self.items_[i].argN_ == self.cur_arg_) {
  put<Ch, Tr, Alloc, T> (x, self.items_[i], self.items_[i].res_, self.buf_, boost::get_pointer(self.loc_) );
  }
    }
    }
    template<class Ch, class Tr, class Alloc, class T> basic_format<Ch, Tr, Alloc>& feed (basic_format<Ch,Tr, Alloc>& self, T x) {
    distribute<Ch, Tr, Alloc, T> (self, x);
    }
    }
      }
        }
          int main() {
        boost::format f("%d\n");
        f %-123;
        }