#include <iostream>
using namespace std;

void checknumber(int i)
{
if(i>9)
{
    if(i%2==0) {cout<<"even"<<endl;}
    else {cout<< "odd" << endl;}
}
else
{
    switch(i)
    {
        case 1:
            cout<<"one"<<endl;
            break;
        case 2:
            cout<<"two"<<endl;
            break;
        case 3:
            cout<<"three"<<endl;
            break;
        case 4:
            cout<<"four"<<endl;
            break;
        case 5:
            cout<<"five"<<endl;
            break;
        case 6:
            cout<< "six"<<endl;
            break;
        case 7:
            cout<<"seven"<<endl;
            break;
        case 8:
            cout<<"eight"<<endl;
            break;
        case 9:
            cout<<"nine"<<endl;
            break;
        default:
            break;

    }
    }
}


int main() {

int a,b;
cin >> a >> b;
for (int i=a; i==b; i++)
{
    checknumber(i);
}

return 0;
}