C31232233133313221211113313331333133313113311331333133313331331123232311   >>    C3123223313331322121111331333133313331311331133133313331333133112323231   <<    C31232233133313221211113313331333133313113311331333133313331331123232313   >>      C31232233133313221211113313331333133313113311331333133313331331123232312   >>