first = input()
firstdata = first.split(" ")
result = 0

for num in range(len(firstdata)):
	if int(firstdata[num])% 3 ==0:
		result = result + 4

	if int(firstdata[num])%5 ==0:
		result = result+ 4

	if not(int(firstdata[num])%3==0 or int(firstdata[num])%5==0):


		result = result+ len(firstdata[num])

print(result)