#include <bits/stdc++.h>
int main(void) {
  unsigned long long n, x, y;
  scanf("%I64u", &n);
  scanf("%I64u %I64u", &x, &y);
  unsigned long long white = sqrt(powl((x - 1), 2) + powl(y - 1, 2));
  unsigned long long black = sqrt(powl((n - x), 2) + powl(n - y, 2));
  if (white <= black) {
    printf("White");
  } else {
    printf("Black");
  }
  return 0;
}
