-r*(-2985984 a^3 y^3 - 8957952 a^2 y^2 + 2985984 a y^4 - 5971968 a y + 2985984 y^3 - 2985984)/(4478976 2^(2/3) z^2 h)+s/(3 2^(1/3) z^2)h

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