text: #include <iostream>
  #include <map>
  
  using namespace std;
  
  
  string spellDigit(const int n) {
      const map<int, string> spelling {
              {1, "one"},
              {2, "two"},
              {3, "three"},
              {4, "four"},
              {5, "five"},
              {6, "six"},
              {7, "seven"},
              {8, "eight"},
              {9, "nine"},       
          };
  
      return spelling.at(n);
  }
  
  string spellOddOrEven(const int n) {
      if (n % 2 == 0) { return "even"; }
      else { return "odd"; }
  }
  
  string solve(const int n) {
      if (n <= 9) {
          return spellDigit(n);
      }
      else {
          return spellOddOrEven(n);
      }
  }
  
  int main() {
      int from{}, to{};
      cin >> from;
      cin >> to;
  
      string answer{};
      for (auto i{from}; i <= to; ++i) {
          answer = solve(i);
          cout << answer << endl;
      }
  
      return 0;
  }
  