
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 a certain junior high school graduating class, each student gave a photo of themselves to every other student in the class as a memento. In total, 2550 photos were given out. If there are $x$ students in the class, write an equation based on the given information.

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