C111112111133131121133133313331333133313123221211111133131133133313221232321
>>
C11111211113313112113313331333133313331312322121111113313113313331322123232
<<
C111112111133131121133133313331333133313123221211111133131133133313221232323
>>
C111112111133131121133133313331333133313123221211111133131133133313221232322
>>