#include <iostream>
#include <string>
#include <cstdio>
using namespace std;

int main() {
    int n1, n2;
    cin >> n1 >> n2;
    string numStr[] = {"one","two","three","four","five","six","seven","eight","nine"};
    
    for (; n1 <= n2; n1++) {
        if (n1 <= 9) {
            cout << numStr[n1-1] << endl;
        }
        if (n1 > 9) {
            if (n1 % 2 == 0) {
                cout << "even" << endl;
            } else {
                cout << "odd" << endl;
            } 
        }
    }
    return 0;
}