C31232233133313221211113313113313331333133313113131211111121121   >>    C3123223313331322121111331311331333133313331311313121111112112   <<    C31232233133313221211113313113313331333133313113131211111121123   >>      C31232233133313221211113313113313331333133313113131211111121122   >>