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