#include <iostream>
#include <vector>
#include <map>
#include <algorithm>
#include <limits.h>
#include <time.h>
#include <string>
#include <string.h>
#include <sstream>
#include <set>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <stack>
#include <queue>

using namespace std;

typedef long long ll;

const int WHITE = 0;
const int BLACK = 1;

int main(){
  int h, w;
  cin >> h >> w;
  int n;
  cin >> n;
  int field[h][w];

  int val = WHITE;

  for(int y = 0; y < h; y++){
    for(int x = 0; x < w; x++){
      field[y][x] = val;
      val ^= 1;
    }
  }

  char s;
  int k;
  for(int i = 0; i < n; i++){
    cin >> s >> k;

    if(s == 'R'){
      int num[w];

      for(int x = 0; x < w; x++){
        num[x] = field[k][(x+w-1)%w];
      }
      for(int x = 0; x < w; x++){
        field[k][x] = num[x];
      }
    }else{
      int num[h];

      for(int y = 0; y < h; y++){
        num[y] = field[(y+h-1)%h][k];
      }
      for(int y = 0; y < h; y++){
        field[y][k] = num[y];
      }
    }
  }


  if(field[0][0] == WHITE){
    cout << "white" << endl;
  }else{
    cout << "black" << endl;
  }

  return 0;
}