C31232233133313221211113313331333133313113311331333133313121111132233313221   >>    C3123223313331322121111331333133313331311331133133313331312111113223331322   <<    C31232233133313221211113313331333133313113311331333133313121111132233313223   >>      C31232233133313221211113313331333133313113311331333133313121111132233313222   >>