C1111233131211111211113313331333133313331333133313331333133313232211312132311   >>    C111123313121111121111331333133313331333133313331333133313331323221131213231   <<    C1111233131211111211113313331333133313331333133313331333133313232211312132313   >>      C1111233131211111211113313331333133313331333133313331333133313232211312132312   >>