C13223313311212111133133313331333132333132322331323132313112231   >>    C1322331331121211113313331333133313233313232233132313231311223   <<    C13223313311212111133133313331333132333132322331323132313112233   >>      C13223313311212111133133313331333132333132322331323132313112232   >>