#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

#include <sys/mman.h>
#include <stdint.h>
#include <unistd.h>
#include <map>
using namespace std;

char wbuf[1<<25];

using keyt=unsigned __int128;

int main(){
	map<keyt,char const*> h;
	{
		char const*rp=static_cast<char const*>(mmap(0,1<<25,1,2,0,0));
		while(*rp++!=10);
		while(*rp){
			int d=16;
			keyt k=0;
			char const*p=rp;
			long c;
			while(c=*p++,c!=32){
				k|=keyt(c)<<(--d<<3);
			}
			while(c=*p++,c!=10){
			}
			h[k]=rp;
			rp=p;
		}
	}
	{
		char*wp=wbuf;
		for(auto&&t:h){
			char const*p=t.second;
			long c;
			while(c=*p++,*wp++=c,c!=10){
			}
		}
		write(1,wbuf,wp-wbuf);
	}
	_exit(0);
}