a=list(map(int,input().split()))
answer=""
for i in range(5):
    if a[i]%15==0:
        answer=answer+"FizzBuzz"
    elif a[i]%3==0:
        answer=answer+"Fizz"
    elif a[i]%5==0:
        answer=answer+"Buzz"
    else:
        answer=answer+str(a[i])
print(len(answer))