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    include

    using namespace std;

    int main() {

    int a, b;
    cin >> a >> b;
    
    string num[] = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
    
    for (int i = a; i <= b; i++){
        if(i >= 1 && i <= 9){
            cout << num[i - 1] << endl;
        }
        else {
            if (i % 2 == 0 && i > 9){
                cout << "even" << endl;
            }
            else {
                cout << "odd" << endl;                
            }
        }
    }
    return 0;
    

    }