C111123313331323113313331333133313331323132333133311211331333231   >>    C11112331333132311331333133313331333132313233313331121133133323   <<    C111123313331323113313331333133313331323132333133311211331333233   >>      C111123313331323113313331333133313331323132333133311211331333232   >>