
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
Kamil starts selling gadgets on his first day at work. On day one, he sold two gadgets. On day two, he sold six gadgets. On each succeeding day, he sold four more gadgets than the previous day. Calculate the total number of gadgets that Kamil sold after working 15 days.

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