def main():
    t=input()
    if "l" not in t and "o" not in t:
        print(0)
        exit()
    if "a" not in t and "s" not in t:
        print(0)
        exit()
    l=t.count("l")
    o=t.count("o")
    a=t.count("a")
    s=t.count("s")
    
    ans=(pow(2,l+o)-1)*(pow(2,a+s)-1)
    if l+a+o+s==8:
        ans-=1
    print(ans)
    
    
main()