#include<bits/stdc++.h>
using namespace std;
int main()
{
	long long a;
	cin>>a;
	if(a%2==0) cout<<"even";
	if(a%2!=0) cout<<"odd";
	return 0;
}

#include<bits/stdc++.h> using namespace std; int n; int main() { cin>>n; if(n%2==0)cout<<"even"; else cout<<"odd"; return 0; }