using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;


class Magatro
{
    static Scanner sc = new Scanner();
    static int H, W;
    static int N;
    static string[] S;
    static int[] K;
    static void Main()
    {
        int x = 0,y = 0;
        Scan();
        for(int i = N - 1; i >= 0; i--)
        {
            switch (S[i])
            {
                case "R":
                    if (y == K[i])
                    {
                        x--;
                        if (x < 0)
                        {
                            x = W - 1;
                        }
                    }
                    break;
                case "C":
                    if (x == K[i])
                    {
                        y--;
                        if (y < 0)
                        {
                            y = H - 1;
                        }
                    }
                    break;
            }
        }
        if ((x + y) % 2 == 0)
        {
            Console.WriteLine("white");
        }
        else
        {
            Console.WriteLine("black");
        }
    }
    static void Scan()
    {
        H = sc.NextInt();
        W = sc.NextInt();
        N = sc.NextInt();
        S = new string[N];
        K = new int[N];
        for (int i = 0; i < N; i++)
        {
            S[i] = sc.Next();
            K[i] = sc.NextInt();

        }
    }
}
public class Scanner
{
    public string[] S;
    private int Index;
    private char Separator;
    public Scanner(char separator=' ')
    {
        Index = 0;
        Separator = separator;
    }
    public string Next()
    {
        string result;
        if (S == null || Index >= S.Length)
        {
            S = Line();
            Index = 0;
        }
        result = S[Index];
        Index++;
        return result;
    }
    private string[] Line()
    {
        return Console.ReadLine().Split(Separator);
    } 
    public int NextInt()
    {
        return int.Parse(Next());
    }
    public double NextDouble()
    {
        return double.Parse(Next());
    }
    public long NextLong()
    {
        return long.Parse(Next());
    }
}