#include <bits/stdc++.h>
#define int long long
//#define USE_FREOPEN
//#define MUL_TEST
#define FILENAME "puzzle"
using namespace std;
char op[1000005];
int k[1000005];

void solve() {
	int h,w;
	cin >> h >> w;
	int n;
	cin >> n;
	int r = 0,c = 0;
	for (int i = 1; i <= n; i++) {
		cin >> op[i] >> k[i];
	}
	for (int i = n; i >= 1; i--) {
		if (op[i] == 'R' && r == k[i]) c = (c - 1 + w) % w;
		else if (op[i] == 'C' && c == k[i]) r = (r - 1 + h) % h;
	}
	
	cout << (((r + c) % 2 == 1) ? "black\n" : "white\n");
}

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

	#ifdef USE_FREOPEN
		freopen(FILENAME ".in","r",stdin);
		freopen(FILENAME ".out","w",stdout);
	#endif
	int _ = 1;
	#ifdef MUL_TEST
		cin >> _;
	#endif
	while (_--)
		solve();
	_^=_;
	return 0^_^0;
}