#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n{};
  cin >> n;
  long long x{}, y{};
  cin >> x >> y;
  if ((x + y - (n + 1)) <= 0)
    cout << "White" << endl;
  else
    cout << "Black" << endl;
  return 0;
}
