#include <iostream>
#include <string>    
#include <fstream> 

using namespace std;

int main() {

	int day;
	cin >> day;

	if (day % 2 == 0) {
		cout << "White";
	}
	if (day % 2 == 1) {
		cout << "Black";
	}

	return 0;
}
#include <iostream>
#include <stdio.h>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <iomanip>
#include <queue>
#include <deque>
#include <map>
#include <unordered_map>
#define rep(i,n) for(int i=0;i<n;i++)
#define repn(i,n) for(int i=1;i<=n;i++)
#define repr(e,x) for(auto& e:x)
using namespace std;
typedef long long ll;
typedef long double ld;
//typedef pair<int,int> P;
double const PI=3.141592653589793;
int const INF=1001001001;
ll const LINF=1001001001001001001;
ll const MOD=1000000007;

int N;

int main(){
    cin>>N;

    if(N&1) cout<<"Black"<<endl;
    else cout<<"White"<<endl; 
}