#include <iostream>
#include <fstream>
#include <vector>
#include <cstring>
#include <string>
#include <algorithm>
#include <iomanip>
using namespace std;

char S[1000000];
int K[1000000];

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	int H, W, N;
	cin >> H >> W >> N;
	for(int i = 0; i < N; i++) {
		cin >> S[i] >> K[i];
	}
	reverse(S, S + N);
	reverse(K, K + N);

	int x = 0, y = 0;
	for(int i = 0; i < N; i++) {
		if(S[i] == 'R') {
			if(K[i] == y) {
				x = (x - 1 + W) % W;
			}
		}
		else {
			if(K[i] == x) {
				y = (y - 1 + H) % H;
			}
		}
	}

	if((x + y) % 2 == 0) {
		cout << "white" << endl;
	}
	else {
		cout << "black" << endl;
	}
}