C111123313331323113313331333133313331323132333133313332112311331   >>    C11112331333132311331333133313331333132313233313331333211231133   <<    C111123313331323113313331333133313331323132333133313332112311333   >>      C111123313331323113313331333133313331323132333133313332112311332   >>