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