import java.io.IOException;
import java.io.InputStream;

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

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

		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 {
	private byte[] buf = new byte[81920];
	private int size;
	private int idx;

	private InputStream is;

	public Scanner(InputStream is) {
		this.is = is;
	}

	private byte readByte() throws IOException {
		while (idx >= size) {
			size = is.read(buf);
			idx = 0;
		}
		return buf[idx++];
	}

	public int nextPositiveInteger() throws IOException {
		byte b = readByte();
		while (!('0' <= b && b <= '9')) {
			b = readByte();
		}

		int num = 0;
		do {
			num = num * 10 + (b - '0');
			b = readByte();
		} while ('0' <= b && b <= '9');
		return num;
	}

	public char nextChar() throws IOException {
		byte b = readByte();
		while (b == ' ' || b == '\n' || b == '\r') {
			b = readByte();
		}
		return (char) b;
	}
}