Simplest
```\n/ Write your T-SQL query statement below /\nSELECT actor_id, director_id\nFROM ActorDirector \n    GROUP BY actor_id, director_id\n         Having COUNT(ti
```\n/* Write your T-SQL query statement below */\nSELECT actor_id, director_id\nFROM ActorDirector \n    GROUP BY actor_id, director_id\n         Having COUNT(timestamp) >=3
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