C3132121111331312113313331333133313331333112331333132212111133112211232221   >>    C313212111133131211331333133313331333133311233133313221211113311221123222   <<    C3132121111331312113313331333133313331333112331333132212111133112211232223   >>      C3132121111331312113313331333133313331333112331333132212111133112211232222   >>