#include <iostream>
#include <vector>
#include <queue>
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;
}

void row_s(vector<int> &v, int w)
{
	int i, tmp = v[w - 1];
	for (i = w - 1; i > 0; i--) v[i] = v[i - 1];
	v[0] = tmp;
}

void col_s(vector<vector<int> > &vv, int h, int t)
{
	int i, tmp = vv[h - 1][t];
	for (i = h - 1; i > 0; i--) vv[i][t] = vv[i - 1][t];
	vv[0][t] = tmp;
}

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); }
	// for (auto i : vv) { for (auto j : i) cout << j << " "; cout << endl; }

	rep(i, 0, n) {
		cin >> s >> k;
		(s == 'R') ? row_s(vv[k], w) : col_s(vv, h, k);
	}
	// for (auto i : vv) { for (auto j : i) cout << j << " "; cout << endl; }

	(vv[0][0]) ? printf("white\n") : printf("black\n");

	return 0;
}