
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
Alex has a bag of marbles and decides to share some with his friends. First, he gives 30% to his friend Lara. Then, he gives 15% of the remaining marbles to another friend, Max. Finally, Alex gives 20% of what is left to his cousin Ben. What percentage of his original bag of marbles does Alex have left for himself?

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