C132233133112121111331333133313331312121111133313331333131133133313312121   >>    C13223313311212111133133313331333131212111113331333133313113313331331212   <<    C132233133112121111331333133313331312121111133313331333131133133313312123   >>      C132233133112121111331333133313331312121111133313331333131133133313312122   >>