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

if a > 0 and b > 0:
    if a + b == 8:
        print((2 ** a - 1) * (2 ** b - 1) - 1)
    else:
        print((2 ** a - 1) * (2 ** b - 1))
else:
    print(0)