<s>[INST] To complete a project, a team needs 15 people, each with a different expertise. Team members with a top priority need to be prepared to devote 40 hours a week, while the rest of the team members are prepared to devote 20 hours a week. The project needs to run for exactly 8 weeks. What is the least number of employees with top priority status to achieve success, assuming all 15 employees have the required expertise and there are enough other tasks that can be done with less priority?[/INST]