A = list(map(int, input().split()))
ans = 0
for a in A:
    if a%3==0 and a%5==0:
        ans+=len("FizzBuzz")
    elif a%3==0:
        ans+=len("Fizz")
    elif a%5==0:
        ans+=len("Buzz")
    else:
        ans+=len(str(a))
print(ans)