Удиви меня

Mean square

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Mean squareMean squareMean squareMean squareMean squareMean square
Mean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean squareMean square