#yuki638

a=map(int,raw_input().split())
cnt=0
for i in xrange(len(a)):
 if a[i]%3==0 and a[i]%5==0:
  cnt+=8
 elif a[i]%3==0 and a[i]%5:
  cnt+=4
 elif a[i]%3 and a[i]%5==0:
  cnt+=4
 elif a[i]%3 and a[i]%5:
  cnt+=len(str(a[i]))
print cnt