
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
Murtha, in addition to pebbles, also starts collecting seashells on the same day. She collects one seashell on the first day, three seashells on the second day, and continues the pattern by collecting two more seashells than the previous day. How many total seashells and pebbles will she have collected together at the end of the tenth day?

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