C1111233131211111211113313331333133313331333133313331311331323332231   >>    C111123313121111121111331333133313331333133313331333131133132333223   <<    C1111233131211111211113313331333133313331333133313331311331323332233   >>      C1111233131211111211113313331333133313331333133313331311331323332232   >>