#include <iostream>
#include<string>
using namespace std;
int main()
{
	int a;
	cin >> a;
	if (a % 2 == 1)cout << "Black"<<endl;
	else cout << "White" << endl;
}
#include <bits/stdc++.h>
using namespace std;
//関数定義

int main() {
//ここに中身
  string S;
  cin >> S;
  char x = S.at(0);
  S.at(0) = S.at(1);
  S.at(1) = S.at(2);
  S.at(2) = x;
  cout << S;
}