
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
Among the following statements, the correct one(s) is/are \_\_\_\_\_\_ (fill in the blank with the number(s) you believe to be correct).

(1) When using the Euclidean algorithm to find the greatest common divisor (GCD) of 295 and 85, the number of subtractions required is 12.

(2) Using the statements X=A, A=B, B=X, one can swap the values of variables A and B.

(3) According to Horner's method, when calculating the polynomial $f(x)=12+35x-8x^{2}+79x^{3}+6x^{4}+5x^{5}+3x^{6}$ at $x=-4$, the value of $V_{2}$ is -57.

(4) If a non-zero constant is subtracted from every number in a set, the average of the set changes, but the variance remains unchanged.

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