#include <bits/stdc++.h>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<int,P> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};

int x=0,y=0,n,h,w;
vi a,b;

int main(){
	cin>>h>>w>>n;
	a=b=vi(n);
	for(int i=0;i<n;i++){
		char c;
		cin>>c>>b[i];
		if(c=='R') a[i]++;
	}
	for(int i=n-1;i>=0;i--){
		if(!a[i]&&y==b[i]) x=(x-1+h)%h;
		if(a[i]&&x==b[i]) y=(y-1+w)%w;
	}
	cout<<((x+y)%2==0?"white":"black")<<endl;
}