#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
 
#include "bits/stdc++.h"
#include <vector>
#include <set>
#include <string>
#include <queue>
#include <list>
#define REP(i,a,b) for(i=a;i<b;++i)
#define rep(i,n) REP(i,0,n)
#define ll long long
#define ull unsigned ll
typedef long double ld;
#define SQR(X)  ( (X)*(X) )
#define CUBE(X) ( (X)*(X)*(X) )
 
// #define int ll
 
using namespace std;
 
bool test = 0;
 
/* ここからが本編 */
 
int main(){
  int i,j,k,l;
  int H,W;
  int N;
  static char S[1000002];
  static int K[1000002];
  cin >> H >> W;
  cin >> N;
  for(i=0;i<N;i++) {
    scanf(" %c %d",&S[i],&K[i]);
  }/*
  rep(i,N) {
    cout << S[i] << ' ' << K[i] << endl;
  }*/
  int x = 0,y = 0;
  for(i=N-1;i>-1;i--) {
    if(S[i] == 'R' && K[i] == y) {
      if(x > 0) x--;
      else x = W-1;
    }
    else if(S[i] == 'C' && K[i] == x){
      if(y > 0) y--;
      else y = H-1;
    }
  }
  if((x+y) % 2) puts("black");
  else puts("white");
  return 0;
}