#include <stdio.h>

#define _m__l__ 0x05
#define _e__ =
#define _c__c_(x) x##ar
#define _ffs__(c,x,y) c __q_(1) _e__ x; c __q_(2) _e__ y;
#define _c__ _c__c_(ch)
#define _n_s__(x) _c__ _s(x)
#define _n_cs__(x,n) _c__ x [n]
#define _d_s_(s) _e__ #s
#define _d_ns_(s) _e__ s
#define _a_oo {
#define _cn__(x) _i__(in) x
#define _ft__ _i__(in)
#define _gd__(x) _d_(n) 10
#define __z_c _e__ _e
#define __e__p(x) ma##x
#define _ep__ __e__p(in)
#define p_o__(x) x##f
#define _o__ p_o__(print)
#define _d_nsa_ _e__ {
#define _d_nse_ }
#define _i__(x) x##t
#define _lt_c__(x) _gl__(x) _p__ _ma__
#define _sa__(x) (##x,
#define p__(x) _p_(x##+)
#define _s(x) *##x
#define _e 0
#define _r__(x) ret##x
#define _e_p__ _r__(urn)
#define _l__p_(y, x) x##y##le
#define l_ _l__p_(hi,w)
#define __ l_ (
#define ___ )
#define _s__w__ 0x50
#define _ndt__(x) _d_(x) 2
#define _p__ +
#define __q_(x) [x]
#define _fs__ 0x73
#define _fds__ 0x25
#define _ma__ 0x30
#define _ml__(x) x##%
#define _d_(x) x##/
#define _gl__(x) _ml__(x) 10
#define _ut_c__(x) _gd__(x) _p__ _ma__
#define __ea_(x) x ___
#define nop ;
#define _n_(x) !##x
#define n_ _n_(=)
#define _p_(x) x##+


_ft__ _ep__ () _a_oo
_n_s__(a) _d_s_(String centrat) nop
_n_s__(b) _d_ns_(a) nop
_cn__(n) __z_c nop
__ p__(_s(b))___ p__(n) nop
n _e__ _ndt__(_s__w__) _p__ _ndt__(n) nop
_n_cs__(c,_m__l__) _d_nsa_ _fds__, _e, _e, _fs__, _e _d_nse_ nop
_ffs__(c, _ut_c__(n), _lt_c__(n)) nop
_o__ _sa__(c) __ea_(a) nop
printf ("\n");
_e_p__ 0 nop
_d_nse_