Actors and directors who cooperated at least three times

#
# Table: ActorDirector
# +-------------+---------+
# | Column Name | Type    |
# +-------------+---------+
# | actor_id    | int     |
# | director_id | int     |
# | timestamp   | int     |
# +-------------+---------+
# timestamp is the primary key (column with unique values) for this table.
# Write a solution to find all the pairs (actor_id, director_id) where the actor has cooperated with the director at least three times.
# Return the result table in any order.
# The result format is in the following example.
# Example 1:
# Input:
# ActorDirector table:
# +-------------+-------------+-------------+
# | actor_id    | director_id | timestamp   |
# +-------------+-------------+-------------+
# | 1           | 1           | 0           |
# | 1           | 1           | 1           |
# | 1           | 1           | 2           |
# | 1           | 2           | 3           |
# | 1           | 2           | 4           |
# | 2           | 1           | 5           |
# | 2           | 1           | 6           |
# +-------------+-------------+-------------+
# Output:
# +-------------+-------------+
# | actor_id    | director_id |
# +-------------+-------------+
# | 1           | 1           |
# +-------------+-------------+
# Explanation: The only pair is (1, 1) where they cooperated exactly 3 times.
#

# Write your MySQL query statement below

SELECT actor_id, director_id
FROM ActorDirector
GROUP BY actor_id, director_id
HAVING COUNT(*) >= 3;