using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static string Solve(int w, int h, int n, string[] slist, int[] klist)
    {
        int x = 0, y = 0;

        for (int ii = n - 1; ii >= 0; --ii)
        {
            if (slist[ii] == "R" && klist[ii] == y)
            {
                x = (x - 1 < 0) ? w - 1 : x - 1;
            }
            else if (slist[ii] == "C" && klist[ii] == x)
            {
                y = (y - 1 < 0) ? h - 1 : y - 1;
            }
        }

        return ((x + y) % 2 == 0) ? "white" : "black";
    }

    static string No_351()
    {
        // h w
        String[] str = Console.ReadLine().Split(' ');
        int h = Int32.Parse(str[0]);
        int w = Int32.Parse(str[1]);

        // n
        int n = Int32.Parse(Console.ReadLine());

        // S K
        string[] slist = new string[n];
        int[] klist = new int[n];
        for (int ii = 0; ii < n ; ++ii)
        {
            str = Console.ReadLine().Split(' ');

            slist[ii] = str[0];
            klist[ii] = Int32.Parse(str[1]);
        }

        return Solve(w, h, n, slist, klist);
    }

    static void Main(string[] args)
    {
        Console.WriteLine(No_351());
    }
}