a=list(map(int,input().split()))
ans=0
for i in range(len(a)):
    if a[i]%3==0 and a[i]%5==0:
        ans+=8
    elif a[i]%3==0 or a[i]%5==0:
        ans+=4
    else:
        ans+=len(str(a[i]))
print(ans)