using namespace std;
int main()
{
  int a;
  cin>>a;
  if(a%2==1){
  	cout<<"odd"<<endl;
  }else if(a%2==0){
  	cout<<"even"<<endl;
  }
  return 0;
}

using namespace std;
int main()
{
  int a,b,c;
  cin>>a;
  if(a%2==0){
  	cout<<"even"<<endl;
  }else{
  	cout<<"odd"<<endl;
  }
  return 0;
}