#include <iostream>
using namespace std;

int n ;

int main() 
{
    cin >> n;
    
    if (n%2==0) {
        cout << "White" << endl;
    } else {
        cout << "Black" << endl;
    }
    
}

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define sz(x) (int)(x).size()
#define dup(x,y) ((x+y-1)/y)
#define dame0 { puts("0"); return 0;}
#define dame1 { puts("-1"); return 0;}
#define yn {puts("Yes");}else{puts("No");}
#define outa cout << ans << endl
#define out(x) cout << x << endl
#define ul(x) x^=32  // 大文字小文字を逆にする
#define shousuu cout << fixed << setprecision(15)
bool flg = false;

int main(){
    int n; cin>>n;
    if(n%2==0) out("White");
    else out("Black");
}

 /*
g++ a.cpp
./a.out
*/
