C11112331312111112111133133313331333132212111133133313331333132331121121   >>    C1111233131211111211113313331333133313221211113313331333133313233112112   <<    C11112331312111112111133133313331333132212111133133313331333132331121123   >>      C11112331312111112111133133313331333132212111133133313331333132331121122   >>