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    include

    include

    using namespace std;

    int main() { int a,b; cin>>a; cin>>b; string s[20]={"one","two","three","four","five","six","seven","eight","nine"};

    for(int i=a;i<=b;i++)
    {
        if(i>=1 && i<=9)
        {
            cout<<s[i-1]<<endl;
        }
        else if(i>9 && i%2==0)
        {
            cout<<"even"<<endl;
        }else{
            cout<<"odd"<<endl;
        }
    }
    
    
    return 0;
    

    }