# No.637 X: Yet Another FizzBuzz Problem
a = [int(i) for i in input().split()]
num = 0

for w in a:
    if w % 3 == 0 and w % 5 == 0:
        num += 8
    elif w % 3 == 0 or w % 5 == 0:
        num += 4
    else:
        num += len(str(w))

print(num)