
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
A florist received between 300 and 400 roses for decorating a celebration. When he placed them in vases with 21 roses in each, there were 13 roses left over. When arranging them with 15 roses in each vase, eight roses were missing. How many roses were there in total?

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