C13332313311211113313331333133313133313232233132313331333131211111223221   >>    C1333231331121111331333133313331313331323223313231333133313121111122322   <<    C13332313311211113313331333133313133313232233132313331333131211111223223   >>      C13332313311211113313331333133313133313232233132313331333131211111223222   >>