C13332313311211113313331333131133133313232233132313113313232213121121   >>    C1333231331121111331333133313113313331323223313231311331323221312112   <<    C13332313311211113313331333131133133313232233132313113313232213121123   >>      C13332313311211113313331333131133133313232233132313113313232213121122   >>