int a,b;
string n[]={"one","two","three","four","five","six","seven","eight","nine"};
cin>>a>>b;
 for (int i = a; i <= b; i++) {
 if(i<=9){

    cout<<n[i-1]<<endl;
 } 
    else{
        if (i % 2 == 0) 
            cout << "even" << endl;
        else 
            cout << "odd" << endl;
    }
}

return 0;