#include <iostream>
using namespace std;

int main(){
   int now = 0,h,w,n;
   cin >> h >> w >> n;
   char c[n];
   int k[n];
   for(int i = 0;i < n;i++)cin >> c[i] >> k[i];
   for(int i = n;i--;){
      if(c[i] == 'R' && now / w == k[i]){
         if(now % w == w - 1) now -= w - 1;
         else now++;
      }else if(c[i] == 'C' && now % w == k[i]){
         if(now / w == h - 1) now %= w;
         else now += w;
      }
   }
   if(now / w & 1) cout << (now - now / w * w & 1 ? "white" : "black") << endl;
   else cout << (now - now / w * w & 1 ? "black" : "white") << endl;
}