C212313222213113313112113121111331333313331333133313223313331323221322231   >>    C21231322221311331311211312111133133331333133313331322331333132322132223   <<    C212313222213113313112113121111331333313331333133313223313331323221322233   >>      C212313222213113313112113121111331333313331333133313223313331323221322232   >>