#include <bits/stdc++.h>
using namespace std;
const int OO = 0x3f3f3f3f, NegOO = -1 * OO, N = 2e3 + 5, mod = 1e9 + 7;
int main() {
  long long n, x, y;
  while (cin >> n >> x >> y) {
    long long needwh = (x - 1) + (y - 1);
    long long needb = (n - x) + (n - y);
    cout << ((needwh > needb) ? "BLACK" : "WHITE") << "\n";
  }
  return 0;
}
