
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
Pat wrote the following equation on the board:

$$
589 + 544 + 80 = 2013.
$$

Mat wanted to correct the equation so that both sides were indeed equal, and searched for an unknown number, which he added to the first term on the left side, subtracted from the second term, and multiplied the third term by it. After performing these operations, the equation was mathematically correct. What number did Mat find?

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