C31232233133313221211113313331333133313331212111113331333131213231311222331   >>    C3123223313331322121111331333133313331333121211111333133313121323131122233   <<    C31232233133313221211113313331333133313331212111113331333131213231311222333   >>      C31232233133313221211113313331333133313331212111113331333131213231311222332   >>