
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
The code of the safe consists of five consecutive digits. Vasily Petrovich placed money in the safe, but when he wanted to retrieve it, he found out that he had forgotten the code. He only remembered that the code included the numbers 21 and 16. What is the minimum number of five-digit numbers that need to be checked to definitely open the safe?

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