s = input()

n = len(s)
res1 = 0
res2 = 0
for i in range(n):
    if s[i] in ['l', 'o']:
        res1 += 1
    elif s[i] in ['a', 's']:
        res2 += 1
ans = 2**res1 - 1
ans *= 2**res2 - 1
print(ans)