#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ul = unsigned long;
using ull = unsigned long long;

const string TARGET_NO = "0351";

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

	ll h, w, n;
	cin >> h >> w >> n;

	stack<pair<string, ll> > st;
	for (ll i = 0; i < n; ++i)
	{
		string s;
		ll k;
		cin >> s >> k;
		st.push(make_pair(s, k));
	}

	ll c{ 0 }, r{ 0 };
	while (!st.empty())
	{
		pair<string, ll> p = st.top();
		st.pop();
		if (p.first == "R" && p.second == r)
			c = (c + w - 1) % w;
		else if (p.first == "C" && p.second == c)
			r = (r + h - 1) % h;
	}

	string res = (r + c) & 1 ? "black" : "white";
	cout << res << "\n";

	return 0;
}