C11112331312111112111133133313331333132212111133133313331333133311211322321   >>    C1111233131211111211113313331333133313221211113313331333133313331121132232   <<    C11112331312111112111133133313331333132212111133133313331333133311211322323   >>      C11112331312111112111133133313331333132212111133133313331333133311211322322   >>