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X2 y2 2 x2 2xy y2

X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2