
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
Given a list of 9 numbers where each new number is the sum of the two previous numbers, starting with two given numbers, determine the first number if the last three numbers are 5, 14, and 19.

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