import java.util.*;

public class Main {
 	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int h = sc.nextInt();
		int w = sc.nextInt();
		int n = sc.nextInt();
		char[] types = new char[n];
		int[] idxes = new int[n];
		for (int i = 0; i < n; i++) {
		    types[i] = sc.next().charAt(0);
		    idxes[i] = sc.nextInt();
		}
		int r = 0;
		int c = 0;
		for (int i = n - 1; i >= 0; i--) {
		    if (types[i] == 'R') {
		        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");
		}
	}
}