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 {
		try (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();
	}
}