# intmap
#include <iostream>
#include <cstdio>
using namespace std;
int main() {
// Complete the code.
int start, stop;
cin >> start >> stop;
string intmap[9] = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
for (int i=start; i<=stop; i++){
if ((1 <= i) && (i <= 9)){
cout << intmap[i-1] << "\n";
}
else if (i % 2 == 0){
cout << "even" << "\n";
}
else {
cout << "odd" << "\n";
}
}
}