#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 100;
int main() {
  long long int n, a, b;
  cin >> n >> a >> b;
  if (a + b > n + 1)
    cout << "Black" << endl;
  else
    cout << "White" << endl;
  return 0;
}
