
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
Three teams planted trees. The first team planted $a$ trees, the second team planted twice as many trees as the first team plus 8 more, and the third team planted 6 fewer trees than half of what the second team planted. How many trees did the three teams plant in total? And calculate the total number of trees planted by the three teams when $a=100$.

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