#include <iostream>
#include <cstdio>
using namespace std;
    
#define Low_Threshold   1
#define High_Threshold  9
    
string namingdb[11] = {"one","two","three","four","five","six","seven","eight","nine","even","odd"};
    
int main() {
    int a,b;

    cin>>a>>b;
    for (int i=a; i<=b;i++)
    {
        if (i>=Low_Threshold && i<=High_Threshold)  
                                   cout<<namingdb[i-Low_Threshold]<<endl;
        else if (i>High_Threshold)
                                   cout<<namingdb[(High_Threshold+(i%2))]<<endl;
        else                        /*Do Nothing*/;
    }
    return 0;
}