C31232233133313221211113313331333133313113311331333131333233311   >>    C3123223313331322121111331333133313331311331133133313133323331   <<    C31232233133313221211113313331333133313113311331333131333233313   >>      C31232233133313221211113313331333133313113311331333131333233312   >>