Toy Story Factory hires n workers to produce toys in the three divisions: "Toddle Toy", "Girl Toy" and "Boy Toy".For any given n workers, the factory always allocates the workers among the three divisions to maximize the amount of toy produced.The following table shows the amount (unit) of toys that will be produced in a division as a function of the number of workers deployed in the corresponding division.For instance, when 2 workers are sent to the Boy Toy division, a total of 200 units of toy will be produced there.

[Number of Workers] [Toddle Toy] [Girl Toy] [Boy Toy]

1 150 120 110

2 240 210 200

3 327 295 281

4 416 376 362

5 486 445 431

According to the Factory's allocation rule, in order to get at least three workers allocated to Girl Toy, n must be at least equal to[Answer].

(Integer, please.)