package main

import (
	"fmt"
	"strconv"
	"os"
	"bufio"
)

func main() {
	var H, W, N int
	fmt.Scanf("%d %d", &H, &W)
	fmt.Scanf("%d", &N)

	SKs := make([]string, N)
	b := bufio.NewReader(os.Stdin)
	for i := 0; i < N; i++ {
		var e error
		var bs []byte
		bs, _, e = b.ReadLine()
		if e != nil {
			panic(e)
		}
		SKs[i] = string(bs)
	}
	h := 0
	w := 0
	for i := N - 1; i >= 0; i-- {
		v, e := strconv.Atoi(SKs[i][2:])
		if e != nil {
			panic(e)
		}
		if SKs[i][0] == 'R' {
			if v == h {
				w = (w - 1 + W) % W
			}
		}else {
			if v == w {
				h = (h - 1 + H) % H
			}
		}
	}
	if (w + h) % 2 == 0 {
		fmt.Printf("white")
	}else {
		fmt.Printf("black")
	}

}