C13223313311212111133133313331333132313331333133313331333133313112211223221   >>    C1322331331121211113313331333133313231333133313331333133313331311221122322   <<    C13223313311212111133133313331333132313331333133313331333133313112211223223   >>      C13223313311212111133133313331333132313331333133313331333133313112211223222   >>