package main

import "fmt"

func main() {
	var H, W, N int
	fmt.Scanf("%d %d", &H, &W)
	fmt.Scanf("%d", &N)
	type SK struct {
		S string
		K int
	}
	SKs := make([]SK, N)
	for i := 0; i < N; i++ {
		fmt.Scanf("%s %d", &SKs[i].S, &SKs[i].K)
	}
	h := 0
	w := 0
	for i := N - 1; i >= 0; i-- {
		if SKs[i].S == "R" {
			if SKs[i].K == h {
				w = (w - 1 + W) % W
			}
		}else {
			if SKs[i].K == w {
				h = (h - 1 + H) % H
			}
		}
	}
	if (w + h) % 2 == 0 {
		fmt.Printf("white")
	}else {
		fmt.Printf("black")
	}

}