C1111233131211111211113313331333133313331333133313331311331323132233132322321   >>    C111123313121111121111331333133313331333133313331333131133132313223313232232   <<    C1111233131211111211113313331333133313331333133313331311331323132233132322323   >>      C1111233131211111211113313331333133313331333133313331311331323132233132322322   >>