int main() {
    int a, b;
    cin >> a >> b;
		
    string numbers[] = {"one", "two", "three", "four", "five", 
                        "six", "seven", "eight", "nine"};

    for (int i = a; i <= b; i++) {
        if (i >= 1 && i <= 9) {
            cout << numbers[i - 1] << endl;
        } else if (i % 2 == 0) {
            cout << "even" << endl;
        } else {
            cout << "odd" << endl;
        }
    }
    return 0;
}