a = list(map(int, input().split()))
ans = 0

for i in range(len(a)):
    if a[i] % 5 == 0 and a[i] % 3 == 0:
        ans += len("FizzBuzz")

    elif a[i] % 5 == 0 or a[i] % 3 == 0:
        ans += 4

    else:
        ans += 1

print(ans)