a, b, c, d, e = map(int, input().split())
numbers = [a, b, c, d, e]
words = []
for i in numbers:
    if i % 3 == 0 and i % 5 == 0:
        words += "FizzBuzz"
    elif i % 3 == 0:
        words += "Fizz"
    elif i % 5 == 0:
        words += "Buzz"
    else:
        words += str(i)
print(len(words))