
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
Farmer John has a  $47 \times 53$  rectangular square grid. He labels the first row  $1, 2, \cdots, 47$ , the second row  $48, 49, \cdots, 94$ , and so on. He plants corn on any square of the form  $47x + 53y$ , for non-negative integers  $x, y$ . Given that the unplanted squares form a contiguous region  $R$ , find the perimeter of  $R$ .

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