C111123313331323113313331333133313331323132333133313331333233221   >>    C11112331333132311331333133313331333132313233313331333133323322   <<    C111123313331323113313331333133313331323132333133313331333233223   >>      C111123313331323113313331333133313331323132333133313331333233222   >>