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Y 1 y2 x2 y

Y 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 y
Y 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 y
Y 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 yY 1 y2 x2 y