C111113331333132322331333133313331333132213331333132322121111331313233121   >>    C11111333133313232233133313331333133313221333133313232212111133131323312   <<    C111113331333132322331333133313331333132213331333132322121111331313233123   >>      C111113331333132322331333133313331333132213331333132322121111331313233122   >>