import java.io.IOException; import java.io.InputStream; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); int h = sc.nextPositiveInteger(); int w = sc.nextPositiveInteger(); int n = sc.nextPositiveInteger(); boolean[] rs = new boolean[n]; int[] ks = new int[n]; for (int i = 0; i < n; i++) { rs[i] = sc.nextChar() == 'R'; ks[i] = sc.nextPositiveInteger(); } int x = 0; int y = 0; for (int i = n - 1; i >= 0; i--) { if (rs[i]) { if (ks[i] == y) { x--; if (x < 0) x = w - 1; } } else { if (ks[i] == x) { y--; if (y < 0) y = h - 1; } } } System.out.println((x + y) % 2 == 0 ? "white" : "black"); } } class Scanner { private byte[] buf = new byte[81920]; private int size; private int idx; private InputStream is; public Scanner(InputStream is) { this.is = is; } private byte readByte() throws IOException { while (idx >= size) { size = is.read(buf); idx = 0; } return buf[idx++]; } public int nextPositiveInteger() throws IOException { byte b = readByte(); while (!('0' <= b && b <= '9')) { b = readByte(); } int num = 0; do { num = num * 10 + (b - '0'); b = readByte(); } while ('0' <= b && b <= '9'); return num; } public char nextChar() throws IOException { byte b = readByte(); while (b == ' ' || b == '\n' || b == '\r') { b = readByte(); } return (char) b; } }