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8*(1/2-abs(z))^10+3.066213808*10^41*(1/2-abs(z))^8+1.075404504*10^44*(1/2-abs(z))^6+2.346857846*10^46*(1/2-abs(z))^4+2.743689401*10^48*(1/2-abs(z))^2+1.283048573*10^50)*y^17/(3.035669563*10^9*(1/2-abs(z))^28+9.605886085*10^12*(1/2-abs(z))^26+2.627855315*10^16*(1/2-abs(z))^24+6.144401780*10^19*(1/2-abs(z))^22+1.211593763*10^23*(1/2-abs(z))^20+1.983047997*10^26*(1/2-abs(z))^18+2.642933514*10^29*(1/2-abs(z))^16+2.801444666*10^32*(1/2-abs(z))^14+2.292599800*10^35*(1/2-abs(z))^12+1.393733550*10^38*(1/2-abs(z))^10+5.974469470*10^40*(1/2-abs(z))^8+1.676327036*10^43*(1/2-abs(z))^6+2.743689402*10^45*(1/2-abs(z))^4+2.138414288*10^47*(1/2-abs(z))^2+5.000000000*10^48)