C31232233133313221211113313331311331333133313113313331333132333131211   >>    C3123223313331322121111331333131133133313331311331333133313233313121   <<    C31232233133313221211113313331311331333133313113313331333132333131213   >>      C31232233133313221211113313331311331333133313113313331333132333131212   >>