import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int h = sc.nextInt();
		int w = sc.nextInt();
		int n = sc.nextInt();
		boolean[] rs = new boolean[n];
		int[] ks = new int[n];

		for (int i = 0; i < n; i++) {
			rs[i] = sc.next().charAt(0) == 'R';
			ks[i] = sc.nextInt();
		}

		int x = 0;
		int y = 0;
		for (int i = n - 1; i >= 0; i--) {
			if (rs[i]) {
				if (ks[i] == y) {
					x--;
					if (x < 0)
						x = w - 1;
				}
			} else {
				if (ks[i] == x) {
					y--;
					if (y < 0)
						y = h - 1;
				}
			}
		}

		System.out.println((x + y) % 2 == 0 ? "white" : "black");
	}
}

class Scanner implements Closeable {
	private BufferedReader br;
	private String[] array;
	private int idx;

	Scanner(InputStream is) {
		InputStreamReader isr = new InputStreamReader(is);
		this.br = new BufferedReader(isr);
		this.array = new String[0];
		this.idx = 0;
	}

	String next() throws IOException {
		if (array.length > idx) {
			return array[idx++];
		} else {
			String line = br.readLine();
			array = line.split(" ");
			idx = 0;
			// 読み込んだ行に何もなかったら・・・ということは考えない。
			return array[idx++];
		}
	}

	int nextInt() throws IOException {
		return Integer.parseInt(next());
	}

	@Override
	public void close() throws IOException {
		br.close();
	}
}