#include "bits/stdc++.h"
using namespace std;
#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))
#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))
#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))
static const int INF = 0x3f3f3f3f; static const long long INFL = 0x3f3f3f3f3f3f3f3fLL;
typedef vector<int> vi; typedef pair<int, int> pii; typedef vector<pair<int, int> > vpii; typedef long long ll;
template<typename T, typename U> static void amin(T &x, U y) { if (y < x) x = y; }
template<typename T, typename U> static void amax(T &x, U y) { if (x < y) x = y; }

int digitsMod(const char s[], int n, int m) {
	int x = 0; long long pow10 = 1;
	for (int i = n - 1; i >= 0; i --) {
		if ((x += pow10 * (s[i] - '0') % m) >= m) x -= m;
		pow10 = pow10 * 10 % m;
	}
	return x;
}
int main() {
	int M;
	while (~scanf("%d", &M)) {
		string P = "177635683940025046467781066894531"s;
		int ans = digitsMod(P.c_str(), P.size(), M);
		puts(ans % 2 == 0 ? "even" : "odd");
	}
	return 0;
}