C111123313121111121111331333133313331312111113331333133313331333132321123231211   >>    C11112331312111112111133133313331333131211111333133313331333133313232112323121   <<    C111123313121111121111331333133313331312111113331333133313331333132321123231213   >>      C111123313121111121111331333133313331312111113331333133313331333132321123231212   >>