
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
Starting from 1, adding consecutive odd numbers sequentially, the sum follows a pattern: $1=1=1^2$; $1+3=4=2^2$; $1+3+5=9=3^2$; $1+3+5+7=16=4^2$; $1+3+5+7+9=25=5^2$; ... Following this pattern, can you guess the sum of the first 10 odd numbers (i.e., when the last odd number is 19)?

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