C111123313121111121111331333133313331322121111331333133313232211211312131   >>    C11112331312111112111133133313331333132212111133133313331323221121131213   <<    C111123313121111121111331333133313331322121111331333133313232211211312133   >>      C111123313121111121111331333133313331322121111331333133313232211211312132   >>