C111123313121111121111331333133313331333133313331333131133132313331211   >>    C11112331312111112111133133313331333133313331333133313113313231333121   <<    C111123313121111121111331333133313331333133313331333131133132313331213   >>      C111123313121111121111331333133313331333133313331333131133132313331212   >>