#include <bits/stdc++.h>

using namespace std;

typedef vector< pair<char, int> > CtrlInp;

int main(int argc, char** argv)
{
	int h, w, n; cin >> h >> w >> n;

	CtrlInp ctrl;
	ctrl.reserve( n );

	for (int ii=0; ii<n; ++ii) {
		char dir;
		int  num;
		cin >> dir >> num;
		ctrl.push_back( make_pair(dir, num) );
	}

	int col=0, row=0;
	CtrlInp::reverse_iterator ritr = ctrl.rbegin();
	for (; ritr!=ctrl.rend(); ++ritr) {
		if ( ritr->first == 'R' && ritr->second == row ) {
			col = (col+w-1) % w;
		}
		else if ( ritr->first == 'C' && ritr->second == col ) {
			row = (row+h-1) % h;
		}
	}

	cout << ((row+col)%2==0 ? "white" : "black") << endl;
	return 0;
}