H, W = map(int, input().split())
N = int(input())
operations = []
for _ in range(N):
    S, K = input().split()
    operations.append((S, int(K)))

i, j = 0, 0

for op in reversed(operations):
    S, K = op
    if S == 'R':
        if i == K:
            j = (j - 1) % W
    else:
        if j == K:
            i = (i - 1) % H

if (i + j) % 2 == 0:
    print("white")
else:
    print("black")