#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  if (n % 2 == 0) 
    cout << "White" << endl;
 else 
   cout << "Black" << endl;
  return 0;
}
#include "bits/stdc++.h"
using namespace std;
typedef long long lint;
#define int lint
const int MOD = 1e9 + 7;
const int INF = 1e7;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define repi(i, k, n) for (int i = (k); i < (int)(n); ++i

signed main()
{
    int n;
    cin >> n;
    if (n % 2 == 0)
        cout << "White" << endl;
    else
        cout << "Black" << endl;
    return 0;
}