#include <iostream>
#include <set>
#include <vector>
using namespace std;
const int maxn = 1e+4;
int n;
int g[maxn];
int mex(vector<int> &a) {
	set<int> b(a.begin(), a.end());
	for (int i = 0;;i++) {
		if(!b.count(i)) {
			return i;
		}
	}
}
void Grandi(int n) {
	vector<int> a;
	for (int i = 2; i < n; i++) {
		a.push_back(g[n - i - 1] ^ g[i - 2]);
	}
	a.push_back(g[n - 2]);
	g[n] = mex(a);
}
int main() {
	cin >> n;
	g[0] = 1;
	g[1] = 1;
	for (int i = 0; i <= 85; i++) {
		Grandi(i);
	}
	if(n <= 51) {
		if(g[n])
			cout << "White";
		else
			cout << "Black";
	}
	else {
		if(g[(n - 52) % 34 + 52])
			cout << "White";
		else
			cout << "Black";
	}
	return 0;
}