S = input()
l = S.count('l') + S.count('o')
a = S.count('a') + S.count('s')

def nCk(n, k):
    ret = 1
    for i in range(n, n - k, -1):
        ret *= i
    for i in range(1, k + 1):
        ret //= i
    return ret

ans = 0
for i in range(1, l + 1):
    for j in range(1, a + 1):
        if i + j != 8:
            ans += nCk(l, i) * nCk(a, j)
print(ans)