C31232233133313221211113313331333133313331212111133133313233313121133121   >>    C3123223313331322121111331333133313331333121211113313331323331312113312   <<    C31232233133313221211113313331333133313331212111133133313233313121133123   >>      C31232233133313221211113313331333133313331212111133133313233313121133122   >>