#include <bits/stdc++.h>
using namespace std;
#define incID(i, l, r) for(int i = (l); i < (r); i++)
#define inc(i, n) incID(i, 0, n)

// ---- ----

int main() {
	int m;
	cin >> m;
	
	int a = 0;
	inc(i, 47) { a = (a * 5 + 1) % m; }
	cout << (a % 2 == 0 ? "even" : "odd") << endl;
	
	return 0;
}