#include <bits/stdc++.h>
using namespace std;
unsigned long long distance(unsigned long long x1, unsigned long long y1,
                            unsigned long long x, unsigned long long y) {
  unsigned long long p = llabs(x - x1);
  unsigned long long q = llabs(y - y1);
  return max(p, q);
}
int main() {
  unsigned long long n, x, y;
  cin >> n >> x >> y;
  if (distance(1, 1, x, y) > distance(n, n, x, y))
    printf("Black\n");
  else
    printf("White\n");
  return 0;
}
