C13332313311211113313331333133313331323132233132313331311223312121   >>    C1333231331121111331333133313331333132313223313231333131122331212   <<    C13332313311211113313331333133313331323132233132313331311223312123   >>      C13332313311211113313331333133313331323132233132313331311223312122   >>