package 練習;
import java.io.PrintWriter;
import java.util.Scanner;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.Iterator;
import java.util.Arrays;


public class main{
	public static void main(String[] args){
		Scanner sc=new Scanner(System.in);
		PrintWriter pw=new PrintWriter(System.out);

		int h=sc.nextInt();
		int w=sc.nextInt();
		int n=sc.nextInt();
		int x=0;
		int y=0;
		char[] s=new char[n];
		int[] k=new int[n];

		for(int i=0;i<n;i++){
			s[i]=sc.next().toCharArray()[0];
			k[i]=Integer.parseInt(sc.next());
		}
		for(int i=n-1;i>=0;i--){
			if(s[i]=='R'&&k[i]==y){
				x=(x-1+w)%w;
			}else if(s[i]=='C'&&k[i]==x){
				y=(y-1+h)%h;
			}
		}

		if((x+y)%2==0){
			pw.println("white");
		}else if((x+y)%2==1){
			pw.println("black");
		}
		pw.close();
		sc.close();
	}

	private static class Scanner {
		BufferedReader br;
		Iterator<String> it;

		Scanner (InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		String next() throws RuntimeException  {
			try {
				if (it == null || !it.hasNext()) {
					it = Arrays.asList(br.readLine().split(" ")).iterator();
				}
				return it.next();
			} catch (IOException e) {
				throw new IllegalStateException();
			}
		}

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

		long nextLong() throws RuntimeException {
			return Long.parseLong(next());
		}

		float nextFloat() throws RuntimeException {
			return Float.parseFloat(next());
		}

		double nextDouble() throws RuntimeException {
			return Double.parseDouble(next());
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
				//				throw new IllegalStateException();
			}
		}
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}

}