#include <iostream>
#include <vector>
#include <stack>
#include <utility>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define pb push_back

void row_r(vector<int> &v, int w)
{
	rep(i, 0, w) v[i] ? v[i] = 0 : v[i] = 1;
}

int main(void)
{
	int i, j, h, w, n, k;
	char s;
	cin >> h >> w >> n;

	vector<vector<int> > vv;
	vector<int> v = { 1 };
	rep(i, 1, w) v[i - 1] ? v.pb(0) : v.pb(1);
	vv.pb(v);
	rep(i, 1, h) { row_r(v, w); vv.pb(v); }

	stack<pair<char, int> > st;
	pair<char, int> pa;
	pair<int, int> pos;
	pos.first = 0; pos.second = 0;

	rep(i, 0, n) {
		cin >> s >> k;
		pa.first = s;  // h
		pa.second = k; // w
		st.push(pa);
	}
	rep(i, 0, n) {
		pa = st.top();
		st.pop();

		if (pa.first == 'C' && pa.second == pos.second) {
			if (pos.first == 0) pos.first = h-1;
			else pos.first--;
		}
		else if (pa.first == 'R' && pa.second == pos.first) {
			if (pos.second == 0) pos.second = w-1;
			else pos.second--;
		}
	}

	(vv[ pos.first ][ pos.second ]) ? printf("white\n") : printf("black\n");

	return 0;
}