C11112331333132311331333133313331333112211231211113313331322331322333121121   >>    C1111233133313231133133313331333133311221123121111331333132233132233312112   <<    C11112331333132311331333133313331333112211231211113313331322331322333121123   >>      C11112331333132311331333133313331333112211231211113313331322331322333121122   >>