import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.*; public class Main { static BufferedReader in; static PrintWriter out; static StringTokenizer tok; void solve() throws IOException { int h = ni(); int w = ni(); int n = ni(); String[] s = new String[n]; int[] k = new int[n]; for (int i = 0; i < n; i++) { s[i] = ns(); k[i] = ni(); } int nowi = 0; int nowj = 0; for (int i = n - 1; i >= 0; i--) { if (s[i].equals("R") && k[i] == nowi) { nowj = (nowj - 1) % w; } else if (s[i].equals("C") && k[i] == nowj) { nowi = (nowi - 1) % h; } } out.println((nowi + nowj) % 2 == 0 ? "white" : "black"); } String ns() throws IOException { while (!tok.hasMoreTokens()) { tok = new StringTokenizer(in.readLine(), " "); } return tok.nextToken(); } int ni() throws IOException { return Integer.parseInt(ns()); } long nl() throws IOException { return Long.parseLong(ns()); } double nd() throws IOException { return Double.parseDouble(ns()); } String[] nsa(int n) throws IOException { String[] res = new String[n]; for (int i = 0; i < n; i++) { res[i] = ns(); } return res; } int[] nia(int n) throws IOException { int[] res = new int[n]; for (int i = 0; i < n; i++) { res[i] = ni(); } return res; } long[] nla(int n) throws IOException { long[] res = new long[n]; for (int i = 0; i < n; i++) { res[i] = nl(); } return res; } public static void main(String[] args) throws IOException { in = new BufferedReader(new InputStreamReader(System.in)); out = new PrintWriter(System.out); tok = new StringTokenizer(""); Main main = new Main(); main.solve(); out.close(); } }