#include <iostream>

using namespace std;

int main(){
  int n;
  cin >> n;
  
  if (n%2 == 0) cout << "White" << endl;
  else cout << "Black" << endl;
}
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
#define _GLIBCXX_DEBUG

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