
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
We call a pair  $(a,b)$  of positive integers,  $a<391$ , *pupusa* if   $$ \textup{lcm}(a,b)>\textup{lcm}(a,391) $$  Find the minimum value of  $b$  across all *pupusa* pairs.

Fun Fact: OMCC 2017 was held in El Salvador. *Pupusa* is their national dish. It is a corn tortilla filled with cheese, meat, etc.

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