#include<iostream>
#include<vector>
#include<string>
#include<numeric>
using namespace std;

string concatinate(const vector<string>& name)
{
	string s;
	return accumulate(name.begin(),name.end(),s);

}

int main()
{
	string s;
	vector<string> name;
	while(cin>>s)
	{
		if(s=="exit")
			break;
		name.push_back(s);
	}

	for(vector<string>::size_type i=0;i<name.size();++i)
		cout<<name[i]<<endl;

	s=concatinate(name);
	cout<<s<<endl;

	return 0;
}