#include <cstdlib>
#include <iostream>
using namespace std;
int main()
{
int d,i;
string recenica;
getline (cin, recenica);
d=recenica.size();
for (i=0; i < d;i++)
if (recenica [i]==’ ‘ && recenica [i+1]!=’ ‘)
cout << endl;
else cout << recenica [i];
return 0;
}