
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
In the diagram, there is a map of roads between the homes of five friends. The shortest distances in kilometers are: from Asya to Galya - 12 km, from Galya to Borya - 10 km, from Asya to Borya - 8 km, from Dasha to Galya - 15 km, and from Vasya to Galya - 17 km. What is the shortest distance by road from Dasha to Vasya?

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