import sys

sys.setrecursionlimit(10 ** 6)
stdin = sys.stdin

ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
ns = lambda: stdin.readline().strip()
nsa = lambda: list(map(str, stdin.readline().split()))
ntp = lambda: tuple(map(int, stdin.readline().split()))
mod = 10 * 9 + 7
inf = 2 << 90

h, w = na()
n = ni()

SK = reversed([ns().split() for _ in range(n)])

plc = [0, 0]
for s, k in SK:
    k = int(k)
    if s == 'R':
        if k == plc[0]:
            if plc[1] == 0:
                plc[1] = w - 1
            else:
                plc[1] -= 1
    else:
        if k == plc[1]:
            if plc[0] == 0:
                plc[0] = h - 1
            else:
                plc[0] -= 1

if sum(plc) % 2 != 0:
    print('black')
else:
    print('white')