In a corporate environment, a company is implementing a micro-segmentation strategy to enhance its security posture. The IT team has identified three critical applications: Application A, Application B, and Application C. Each application has different security requirements and user access levels. Application A requires access only from the finance department, Application B needs access from both the finance and HR departments, while Application C is accessible by all departments. The IT team decides to create three distinct segments based on these requirements. If the company has 100 employees in the finance department, 50 in HR, and 150 in other departments, what is the total number of unique access segments created for these applications?