def solve():
    H, W = map(int, raw_input().split())
    N = int(input())

    A = [None] * N
    for i in xrange(N):
        A[i] = raw_input().split()

    x = y = 0
    for i in xrange(N - 1, -1, -1):
        s, k = A[i]
        if s == 'R':
            if int(k) == y:
                x = x - 1 if x else W - 1
        else:
            if int(k) == x:
                y = y - 1 if y else H - 1

    print('black' if ((x + y) % 2) else 'white')


if __name__ == '__main__':
    solve()