C31232233133313221211113313331333131211113313231311331323221211113313223322331   >>    C3123223313331322121111331333133313121111331323131133132322121111331322332233   <<    C31232233133313221211113313331333131211113313231311331323221211113313223322333   >>      C31232233133313221211113313331333131211113313231311331323221211113313223322332   >>