C31232233133313221211113313331333133313113311331333133313121111132212323221   >>    C3123223313331322121111331333133313331311331133133313331312111113221232322   <<    C31232233133313221211113313331333133313113311331333133313121111132212323223   >>      C31232233133313221211113313331333133313113311331333133313121111132212323222   >>