#include <iostream>
using namespace std;
int main(){
int a;
cin>>a;
if(a%2==0){
cout<<"even";
}
else{
cout<<"odd";
}
return 0;
}
#include <iostream>
using namespace std;
int main(){
int a;
cin>>a;
if(a%2==0){
cout<<"even";
}
else{
cout<<"odd";
}
return 0;
}