#include<iostream>
#include<string>
#include<vector>
#include<iterator>
#include<algorithm>
#include<cctype>
#include<list>
using namespace std;
bool space(char c)
{
	return isspace(c);
}
bool not_space(char c)
{
	return !isspace(c);
}
template <class Out>					//changed
void split(const string& str,Out os)	//changed
{
	typedef string::const_iterator iter;
	
	iter i=str.begin();
	while(i!=str.end())
	{
		//ignore leading blanks
		i=find_if(i,str.end(),not_space);

		//find end of next word
		iter j=find_if(i,str.end(),space);

		//copy the characters in [i,j);
		*os++=string(i,j);				//changed
		
		i=j;
	}
}
template <class In,class Out>
Out chengcopy(In begin,In end,Out dest)
{
	while(begin!=end)
		*dest++=*begin++;
	return dest;
}

int main()
{
	string s;
	vector<string> v;
	list<string> u;

	getline(cin,s);

	split(s,back_inserter(v));
	split(s,back_inserter(u));

	split(s,ostream_iterator<string>(cout,"\n"));

	chengcopy(v.begin(),v.end(),ostream_iterator<string>(cout,"\n"));
	chengcopy(u.begin(),u.end(),ostream_iterator<string>(cout,"\n"));

	return 0;
}