#include <iostream>
#include <stdio.h>
#include <cstring>
#include <math.h>
#include <algorithm>
#include <vector>
#define rep(i,n) for(int i=0;i<n;i++)
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define ll long long
#define LL long long
#define mass 1000000007
using namespace std;
int keta(int n,int k){return (n/int(pow(10,double(k-1)))) % 10;} //nの下からk桁目


int main(){
	
	int h,w,n;
	cin>>h>>w;
	cin>>n;
	char *s;
	int *k;
	s=new char[n];
	k=new int[n];
	rep(i,n){
		cin>>s[i]>>k[i];
	}
	int h1=0,w1=0;
	for(int i=n-1;i>=0;i--){
		if(s[i]=='R'){
			if(k[i]==h1){
				w1--;
				if(w1==-1){
					w1=w-1;
				}
			}
		}else{
			if(k[i]==w1){
				h1--;
				if(h1==-1){
					h1=h-1;
				}
			}
		}
	}
	if((h1-w1)%2==0){
		cout<<"white"<<endl;
	}else{
		cout<<"black"<<endl;
	}
	return 0;

}