C11112331312111112111133133313331333132322121111331311331331121   >>    C1111233131211111211113313331333133313232212111133131133133112   <<    C11112331312111112111133133313331333132322121111331311331331123   >>      C11112331312111112111133133313331333132322121111331311331331122   >>