C312322331333132212111133133313331333133312121111331333132311233112211   >>    C31232233133313221211113313331333133313331212111133133313231123311221   <<    C312322331333132212111133133313331333133312121111331333132311233112213   >>      C312322331333132212111133133313331333133312121111331333132311233112212   >>