using System;

public class Program {
    public static void Main() {
        int[] size = Array.ConvertAll(Console.ReadLine().Split(), value => int.Parse(value));
        bool[,] isWhite = new bool[size[0], size[1]];
        for (int i = 0; i < size[0]; i++) {
            for (int j = 0; j < size[1]; j++) {
                isWhite[i, j] = ((i+j)&1) == 0;
            }
        }
        int n = int.Parse(Console.ReadLine());
        bool[] tempC = new bool[size[0]];
        bool[] tempR = new bool[size[1]];
        for (int i = 0; i < n; i++) {
            string[] move = Console.ReadLine().Split();
            int line = int.Parse(move[1]);
            if (move[0] == "C") {
                for (int j = 0; j < size[0]; j++) {
                    tempC[j] = isWhite[j, line];
                }
                for (int j = 0; j < size[0]; j++) {
                    isWhite[(j+1)%size[0], line] = tempC[j];
                }
            } else {
                for (int j = 0; j < size[1]; j++) {
                    tempR[j] = isWhite[line, j];
                }
                for (int j = 0; j < size[1]; j++) {
                    isWhite[line, (j+1)%size[1]] = tempR[j];
                }
            }
        }
        Console.WriteLine(isWhite[0, 0] ? "white" : "black");
    }
}