#include <bits/stdc++.h>
using namespace std;
const int N = 1000002;
int main() {
  long long int n, x, y;
  scanf("%lld", &n);
  scanf("%lld %lld", &x, &y);
  double white = sqrt(pow(x - 1, 2) + pow(y - 1, 2));
  double black = sqrt(pow(n - x, 2) + pow(n - y, 2));
  if (white <= black)
    printf("White\n");
  else
    printf("Black\n");
  return 0;
}
