The domain name of a website is "example.com", and three servers are deployed, namely servers A, B, and C. When the administrator configures domain name resolution, the weight of A is set to 2, the…

The domain name of a website is "example.com", and three servers are deployed, namely servers A, B, and C. When the administrator configures domain name resolution, the weight of A is set to 2, the weight of B is 3, and the weight of C is 1. If DNS receives 12 access requests at this time, the user can receive ( ) times the return information from server B. (Please fill in the Arabic numerals in the blanks)