#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  if(n%2==1)cout<<"Black";
  else cout<<"White";
}
#include<bits/stdc++.h>

#define rep(i,n) for(int i = 0; i < (n); i++)
#define rrep(i,n) for(int i = (n)-1; i >= 0; i--)
#define rep1(i,n) for(int i = 1; i <= (n); i++)
#define rrep1(i,n) for(int i = (n); i > 0; i--)

#define ll long long
#define pi pair<int, int>
#define pll pair<ll, ll>

#define MOD 1000000007
#define INF 1000000000000000LL

using namespace std;

int main(){
  int n;cin>>n;

  if(n%2==0)cout<<"White"<<endl;
  else cout<<"Black"<<endl;
  return 0;
}