
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
After obtaining his magical staff, Sun Wukong borrowed weapons for the other monkeys. It is known that Sun Wukong borrowed a total of 600 jin (a unit of weight), with each weapon weighing no more than 30 jin. Each monkey can carry a maximum of 50 jin. To ensure all borrowed weapons are transported back, how many monkeys are needed at minimum? (Sun Wukong doesn't carry any weapons)

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