C++ :

#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int main()
{
//	freopen("213.in","r",stdin);
//	freopen("213.out","w",stdout);
	string s,temp;
	cin>>s;
	while(cin>>temp)
	{
		s+=' '+temp;
	}
	cout<<s<<endl;
	return 0;
}