public class Test {
  public static int Main(string[] args) {
    for (int i = 0; i < 100; i++) {
      for (int v = 0; v < 100; v++) {
        System.Console.WriteLine(v);
        if (v == 20) break;
      }
      if (i == 50) {
        System.Console.WriteLine("damn it");
      } else {
        System.Console.WriteLine("ok, that's good");
      }
    }
    return 5000;
  }
}