
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
Four friends: Al, Betty, Clare, and Danny, share $ \$1200 $ for investment. Each starts with a different amount. At the end of one year, they together make $ \$1800 $. Betty and Clare triple their individual investments, Al loses $ \$150 $, and Danny doubles his investment. Determine Al's original amount.

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