
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 grid in the diagram represents the city's road network (lines represent roads). Assuming that the 25 squares in the diagram are all of the same size, how many different shortest paths are there from $A$ to $B$?

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