from collections import defaultdict

N, S = "N", "S"


def f2(x):
    return 2**x - x - 1


def f1(x):
    return 2**x - 1


def f_main(s):
    d = defaultdict(int)
    for c in s:
        if c in {"a", "s"}:
            d[S] += 1
        if c in {"l", "o"}:
            d[N] += 1

    if len(d) < 2:
        return 0
    elif sum(d.values()) == len(s):
        res = 0
        for a, b in [(S, N), (N, S)]:
            res += f2(d[a]) * f1(d[b])
        return res
    else:
        res = 1
        for v in d.values():
            res *= f1(v)
        return res


print(f_main(input()))