#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=1000010;
int n,m,q;
int row[N],col[N];
void solve(){
	cin>>n>>m>>q;
	while(q--){
		string op;
		cin>>op;
		int x;
		cin>>x;
		if(op=="R")row[x]--;
		else col[x]--;
	}
	int idx=(row[0]%m+m)%m;
	int idy=(col[0]%n+n)%n;
	if(idx%2==idy%2)cout<<"white\n";
	else cout<<"black\n";
	for(int i=0;i<n;i++)row[i]=0;
	for(int i=0;i<m;i++)col[i]=0;
	return;
}
signed main(){
//	freopen("puzzle.in","r",stdin);
//	freopen("puzzle.out","w",stdout);
	int T=1;
//	cin>>T;
	while(T--)solve(); 
	return 0;
}