
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
Mason from the U.S. and his German friend Lena are at a café in Berlin that accepts both euros and American dollars. They want to buy a coffee and a pastry set, but neither has enough money individually. If the set costs 8 euros and Mason has a ten-dollar bill, how many euros does Lena need to contribute if 1 euro equals 1.10 USD?

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