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Let $$f : R \to R$$ be a function defined by $$f(x)=21-f\left(\frac{25}{x}\right)+f\left(\frac{1}{x^{50}}\right)$$. If the function $$g(x) = f(f(f(x))) + f(f(x))$$, then the greatest integer less than or equal to $$g(1)$$ is ______.
Correct Answer: 2
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