# include <vector>
# include <iomanip>
# include <fstream>

# define rep(i, n) for (int i = 0; i < (int)(n); i++)
# define irep(i, n) for (int i = int(n) - 1; i >= 0; i--)
# define FOR(i, m, n) for (int i = int(m); i < (int)(n); i++)

using namespace std;


int main() {

  std::ifstream fs;
  std::string buf, elem, token;

  fs.open("./data/train.csv");

  for (int i=0; getline(fs, buf); i++) {
    istringstream stream(buf);
    for (int j=0; getline(stream, elem, ','); j++) {
      if (j == 3 || j == 4) {
        istringstream stream2(elem);
        for (int k=0; getline(stream2, token, ' '); k++) {
          cout << token << endl;
        }
      }
    }
  }
}