C11112331312111112111133133313331333132212111133132331223112331   >>    C1111233131211111211113313331333133313221211113313233122311233   <<    C11112331312111112111133133313331333132212111133132331223112333   >>      C11112331312111112111133133313331333132212111133132331223112332   >>