import java.util.*;
import java.io.*;

public class Main {
 	public static void main (String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] first = br.readLine().split(" ", 2);
		int h = Integer.parseInt(first[0]);
		int w = Integer.parseInt(first[0]);
		int n = Integer.parseInt(br.readLine());
		boolean[] isR = new boolean[n];
		int[] idxes = new int[n];
		for (int i = 0; i < n; i++) {
		    String line = br.readLine();
		    isR[i] = line.charAt(0) == 'R';
		    idxes[i] = Integer.parseInt(line.substring(2, line.length()));
		}
		int r = 0;
		int c = 0;
		for (int i = n - 1; i >= 0; i--) {
		    if (isR[i]) {
		        if (idxes[i] == r) {
		            c = (c + w - 1) % w;
		        }
		    } else {
		        if (idxes[i] == c) {
		            r = (r + h - 1) % h;
		        }
		    }
		}
		if (c % 2 == 0 ^ r % 2 == 0) {
		    System.out.println("black");
		} else {
		    System.out.println("white");
		}
	}
}