package main

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

var sc = bufio.NewScanner(os.Stdin)

func main() {
	sc.Split(bufio.ScanWords)
	h, w, n := nextInt(), nextInt(), nextInt()
	ns := make([][]int, n)

	for i := range ns {
		ns[i] = []int{int(nextLine()[0]), nextInt()}
	}

	x, y := 0, 0
	for i := n - 1; i >= 0; i-- {
		if ns[i][0] == 'R' {
			if y != ns[i][1] {
				continue
			}
			x--
			if x < 0 {
				x = w - 1
			}
			continue
		}

		if x != ns[i][1] {
			continue
		}
		y--
		if y < 0 {
			y = h - 1
		}
	}

	s := true
	if y&1 == 0 {
		s = false
	}
	if x&1 == 0 {
		s = !s
	}

	if s == true {
		fmt.Println("white")
		return
	}
	fmt.Println("black")
}

func nextLine() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	i, _ := strconv.Atoi(nextLine())
	return i
}