C13223313311212111133133313331333133313233121333133313113313123231333131233121   >>    C1322331331121211113313331333133313331323312133313331311331312323133313123312   <<    C13223313311212111133133313331333133313233121333133313113313123231333131233123   >>      C13223313311212111133133313331333133313233121333133313113313123231333131233122   >>