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

cur_x, cur_y = 0, 0
for s, k in reversed(Q):
    if s == 'R':
        if cur_x == k:
            cur_y = (cur_y - 1) % W
    else:
        if cur_y == k:
            cur_x = (cur_x - 1) % H
print('black' if (cur_x + cur_y) % 2 else 'white')