#include <bits/stdc++.h>
#define REP(i,n,N) for(int i=(n);i<(int) N;i++)
#define RREP(i,n,N) for(int i=N-1;i>=(int) n;i--)
#define p(s) cout<<(s)<<endl
#define DEBUG(x,y) cout<<#x<<": "<<x<<" , "<<#y<<": "<<y<<endl;
#define CK(n,a,b) ((a)<=(n)&&(n)<=(b))
#define F first
#define S second
typedef long long ll;
using namespace std;
const ll inf=1e9;

char S[1010101];
int K[1010101];
int main(){
	int posy=0,posx=0;
	int H,W,N;
	cin>>H>>W>>N;
	REP(i,0,N){
		cin>>S[i]>>K[i];
	}
	RREP(i,0,N){
		if(S[i]=='R'&&K[i]==posy){
			posx = (posx-1+W)%W;
		}else if(S[i]=='C'&&K[i]==posx){
			posy = (posy-1+H)%H;
		}
	}
	if(posy%2 != posx%2) p("black");
	else p("white");
	return 0;
}