C11112331312111112111133133313331333132212111133133313331333132333112312311   >>    C1111233131211111211113313331333133313221211113313331333133313233311231231   <<    C11112331312111112111133133313331333132212111133133313331333132333112312313   >>      C11112331312111112111133133313331333132212111133133313331333132333112312312   >>