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min sqrt(x^2+(1-y)^2)+sqrt((1-x)^2+y^2) where x^2+(1-y)^2=4*(x^2+y^2)
min sqrt(x^2+(1-y)^2)+sqrt((1-x)^2+y^2) where x^2+(1-y)^2=4*(x^2+y^2)
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