#include <bits/stdc++.h>
using namespace std;

#define rep(i,a,b) for(int i=a;i<b;i++)
#define MP make_pair

typedef pair<string, int> psi;

int main()
{
	int H, W, N;
	cin >> H >> W >> N;
	vector<psi> SK(N);
	rep(i, 0, N) {
		string s;
		int k;
		cin >> s >> k;
		SK[i] = MP(s, k);
	}

	int x, y;
	x = y = 0;
	rep(i, 0, N)
	{
		int j = N - 1 - i;

		string s = SK[j].first;
		int k = SK[j].second;

		if (s == "R")
		{
			if (y == k)
			{
				x--;
				if (x < 0) x = W - 1;
			}
		}
		else
		{
			if (x == k)
			{
				y--;
				if (y < 0) y = H - 1;
			}
		}
	}

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