C31232233133313221211113313331333132313331322121111331333112211231   >>    C3123223313331322121111331333133313231333132212111133133311221123   <<    C31232233133313221211113313331333132313331322121111331333112211233   >>      C31232233133313221211113313331333132313331322121111331333112211232   >>