
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
Cut a rectangular cardboard with a length of 90 cm and a width of 42 cm into smaller squares with integer side lengths, without any leftover pieces. What is the minimum number of such squares, and what is the total perimeter of all these squares?

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