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