#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

int H,W;
int N;
string S[1010101];
int K[1010101];

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>H>>W;
	cin>>N;
	FOR(i,N) cin>>S[i]>>K[i];
	x=y=0;
	for(i=N-1;i>=0;i--) {
		if(S[i][0]=='R' && y==K[i]) (x+=W-1)%=W;
		if(S[i][0]=='C' && x==K[i]) (y+=H-1)%=H;
	}
	
	if((x+y)&1) _P("black\n");
	else _P("white\n");
	
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}