include

include

using namespace std;

int main() { // char arr[10] = {"zero", "three", "four","five","six", "seven", "eight","nine"};

int a,b;
cin >> a >> b;

for(int i = a; i<=b; i++){
    if(i <= 9){
        // cout<< " "<<endl;
        // continue;

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

return 0;

}