C11112331312111112111133133313331333132212111133133311211311331   >>    C1111233131211111211113313331333133313221211113313331121131133   <<    C11112331312111112111133133313331333132212111133133311211311333   >>      C11112331312111112111133133313331333132212111133133311211311332   >>