C11112331312111112111133133313331333133311222121133131133132333132233131   >>    C1111233131211111211113313331333133313331122212113313113313233313223313   <<    C11112331312111112111133133313331333133311222121133131133132333132233133   >>      C11112331312111112111133133313331333133311222121133131133132333132233132   >>