// Nothing is Given, Everything is Earned.
#include<bits/stdc++.h>
using namespace std;

int main()
{
   int n; cin>>n;
   vector<vector<int>> a;
   for(int i=0;i<n;i+=2)
   {
      a.push_back(vector(i,0));
      a.push_back(vector(i,1));
      for(auto &i:a)
      {
         i.push_back(0);
         i.push_back(1);
      }
   }
   for(auto i:a)
   {
      for(auto j:i) cout<<(j?'B':'W');
      cout<<"\n";
   }
   return 0;
}