#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;
	
	if(m % 2 == 0 || m == 3) {
		cout << "odd" << endl;
	} else if(m == 1 || m == 7 || m == 21) {
		cout << "even" << endl;
	} else {
		cout << "WA" << endl;
	}
	
	return 0;
}