
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Select 4 people from 6 to visit the USA Pavilion, the UK Pavilion, the France Pavilion, and the Saudi Pavilion at the Shanghai World Expo, with the requirement that each pavilion is visited by one person, each person visits only one pavilion, and among these 6 people, person A and person B will not visit the France Pavilion. The total number of different selection schemes is      kinds.

Present the answer in LaTex format: \boxed{Your answer}
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