#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main(void) {
  string str;
  ofstream ofs("out.txt");
  ifstream ifs("in.csv");
  while(!ifs.eof()) {
    ifs >> str;
    if(ifs.good())
      ofs << str << endl;
  }
  return 0;
}

Timeout