#include <iostream> 
#include <string>
#include <vector> 
#include <algorithm>
using namespace std;
class line : public string { };    
istream& operator>>(istream& i, line& s) {
  s.clear();
    while (true) {
      char c;
      i.get(c);
      if (i.eof()) 
        break;
      s.push_back(c);
      if (c == '\n') 
        break;
    }
  
  return i;
}
template <class Container>
struct randgen {
  typedef typename Container::difference_type argument_type;
  typedef typename Container::difference_type result_type;
  result_type operator()(argument_type n) 
  { 
    return lrand48() % n; 
  }
};

randgen<vector<line> > randgen1;

int main(int argc, char* argv[])
{
  vector<line> lines;
  if (argc == 2)
    srand48(atoi(argv[1]));
  else {
    srand48(7);
    cerr << "******Rerun with one command line argument, an integer, "
      << "to get a different scrambling of the output." << endl;
  }
  typedef istream_iterator<line> line_input;
  copy(line_input(cin), line_input(), back_inserter(lines));
  random_shuffle(lines.begin(), lines.end(), randgen1);
  typedef ostream_iterator<line> line_output;
  copy(lines.begin(), lines.end(), line_output(cout, ""));
  return 0;
}