#include<iostream>
using namespace std;
int main(){
  int N;
  cin >> N;
  if(N%2==0)cout << "White" << endl;
  if(N%2==1)cout << "Black" << endl;
  return 0;
}
// --------------------------------------------------<C++ TEMPLATE>------------------------------------------------
/**
    *  Nitin Gangwar
    *  @wargang (codechef,codeforces,spoj,gfg)
    *  MNNIT allahabad
    *  CSE'23
    *  iamnitingangwar2000@gmail.com
**/

#include <bits//stdc++.h>
using namespace std;

// MACROS
#define int                     long long
#define mp                      make_pair
#define pb                      push_back
#define MAX                     1e9
#define MIN                     -1e9
#define PI                      3.1415926535897932384626433832795
#define mod                     1000000007
#define set(x)                  memset(x, 0, sizeof(x))
#define clr(x)                  memset(x, -1, sizeof(x))
#define ff                      first
#define ss                      second
#define rep(i,n)                for(int i=0;i<(n);i++)
#define FOR(i,a,b)              for(int i=(a);i<=(b);i++)
#define FORD(i,a,b)             for(int i=(a);i>=(b);i--)
#define test()                  int t;cin>>t;while(t--)
#define endl                    "\n"


typedef priority_queue<int>     maxHeap;
typedef priority_queue<int,     vector<int>, greater<int>> minHeap;
typedef pair<int, int>          pii;
typedef vector<int>             vi;
typedef vector<string>          vs;
typedef vector<pii>             vpii;
typedef vector<vi>              vvi;
typedef map<int, int>            mpii;
typedef set<int>                seti;
typedef multiset<int>           mseti;
// typedef long int                ld;
// typedef unsigned long int       lu;
// typedef long long int           ll;
// typedef unsigned long long int  llu;



const int T2 = 105; const int T3 = 1005; const int T4 = 10005; const int T5 = 100005;




void solve(){
    int n;
    cin>>n;
    if(n&1)
        cout<<"Black";
    else 
        cout<<"White";



}




int32_t main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#ifndef ONLINE_JUDGE
    // for getting input from input.txt
    freopen("input.txt", "r", stdin);
    // for writing output to output.txt
    freopen("output.txt", "w", stdout);
#endif
    int t=1;
    // cin>>t;
    while(t--){

        solve();


    }
    return 0;
}