C31232233133313221211113313331333133313113311331333133323131133133313223311   >>    C3123223313331322121111331333133313331311331133133313332313113313331322331   <<    C31232233133313221211113313331333133313113311331333133323131133133313223313   >>      C31232233133313221211113313331333133313113311331333133323131133133313223312   >>