#include "AlphabetOrderDiv2.cpp"

int main(int argc, char **argv)
{
  int i;
  class AlphabetOrderDiv2 TheClass;
  string retval;
  string s;
  vector <string> words;

  if (argc != 2) { fprintf(stderr, "usage: a.out num\n"); exit(1); }

  if ((string) argv[1] == "-") {
    while (cin >> s) words.push_back(s);
  } else {

    if (atoi(argv[1]) == 0) {
      words.push_back("single");
      words.push_back("round");
      words.push_back("match");
    }
  
    if (atoi(argv[1]) == 1) {
      words.push_back("topcoder");
      words.push_back("topcoder");
    }
  
    if (atoi(argv[1]) == 2) {
      words.push_back("algorithm");
      words.push_back("contest");
    }
  
    if (atoi(argv[1]) == 3) {
      words.push_back("pink");
      words.push_back("floyd");
    }
  
    if (atoi(argv[1]) == 4) {
      words.push_back("gimnasia");
      words.push_back("y");
      words.push_back("esgrima");
      words.push_back("la");
      words.push_back("plata");
    }
  
    if (atoi(argv[1]) == 5) {
      words.push_back("hello");
      words.push_back("hello");
    }
  
    if (atoi(argv[1]) == 6) {
      words.push_back("abc");
      words.push_back("def");
      words.push_back("ghi");
      words.push_back("jkl");
      words.push_back("mno");
      words.push_back("pqrs");
      words.push_back("tuv");
      words.push_back("wxyz");
    }
  
    if (atoi(argv[1]) == 7) {
      words.push_back("abc");
      words.push_back("bca");
    }
  
    if (atoi(argv[1]) == 8) {
      words.push_back("aaaaa");
      words.push_back("eeeee");
      words.push_back("iiiii");
      words.push_back("ooooo");
      words.push_back("uuuuu");
    }
  
    if (atoi(argv[1]) == 9) {
      words.push_back("ab");
      words.push_back("bc");
      words.push_back("ca");
    }
  }

  retval = TheClass.isOrdered(words);
  cout << retval << endl;

  exit(0);
}