C13332313311211113313331333133313133313232233132313331333211221   >>    C1333231331121111331333133313331313331323223313231333133321122   <<    C13332313311211113313331333133313133313232233132313331333211223   >>      C13332313311211113313331333133313133313232233132313331333211222   >>