C31232233133313221211113313331333133313113311331333133313121111111133132322221   >>    C3123223313331322121111331333133313331311331133133313331312111111113313232222   <<    C31232233133313221211113313331333133313113311331333133313121111111133132322223   >>      C31232233133313221211113313331333133313113311331333133313121111111133132322222   >>