
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
Qingyang sachets are exquisite embroidery treasures with a long history, made with unique artistic conception, exquisite embroidery craftsmanship, fresh and elegant natural fragrances, and handmade with colorful silk threads. A certain store purchased 600 sachets of different types at a price of $m$ yuan each, sold 550 of them at a 20% markup, and sold the remaining ones after reducing the price by $n$ yuan each. The profit obtained by the store is ______ yuan.

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