def check_three(num):
    if num % 3 == 0:
        three = 1
    else:
        three = 0
    return three
def check_five(num):
    if num % 5 == 0:
        five = 1
    else:
        five = 0
    return five

a = input().split()
N = 0
for i in range(len(a)):
    if check_three(int(a[i])) + check_five(int(a[i])) == 2:
        N+=8
    elif check_three(int(a[i])) + check_five(int(a[i])) == 1:
        N += 4
    else:
        N += len(a[i])
print(N)