#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
using namespace std;

typedef long long ll;

int MOD = 1000000007;

int main() {
	int H, W; cin >> H >> W;
	int N; cin >> N;
	vector<string> s(N);
	vector<int> a(N);
	for (int i = 0; i < N; i++)
		cin >> s[i] >> a[i];
	int y = 0, x = 0;
	for (int i = N - 1; i >= 0; i--) {
		if (s[i] == "R" && a[i] == y) x = (x + W - 1) % W;
		if (s[i] == "C" && a[i] == x) y = (y + H - 1) % H;
	}
	cout << ((y + x) % 2 == 0 ? "white" : "black") << endl;
}