
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
The determined spider wants to crawl to a fly caught in its web (see drawing). The spider can only crawl upwards and to the right along the web threads. How many different ways are there for the spider to reach its target?

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