#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <stdio.h>
#include <string.h>
#include <math.h>
using namespace std;

int main() {
    int m;
    cin >> m;

    char c[] = "177635683940025046467781066894531";
    int n = strlen(c);

    int r = 0;
    for (int i = 0; i < n; i++) {
        r = (r * 10 + (c[i] - '0')) % m;
    }

    cout << (r % 2 == 0 ? "even" : "odd") << endl;

    return 0;
}