S = input()
N, M = S.count("l") + S.count("o"), S.count("a") + S.count("s")
print((2 ** N - 1) * (2 ** M - 1) - 1 if (2 ** N - 1) * (2 ** M - 1) and N + M == 8 else (2 ** N - 1) * (2 ** M - 1))