C11112331333132311331333133313331333112211231211113313331312113311111   >>    C1111233133313231133133313331333133311221123121111331333131211331111   <<    C11112331333132311331333133313331333112211231211113313331312113311113   >>      C11112331333132311331333133313331333112211231211113313331312113311112   >>