y, x, 
((x-1)^6+(y-1)^6-4000001/2000000)*((x+1)^6+(y-1)^6-1999999/1000000)*((x-1)^6+(y+1)^6-2)*((x+1)^6+(y+1)^6-2)
6*(y-1)^5*((x+1)^6+(y-1)^6-1999999/1000000)*((x-1)^6+(y+1)^6-2)*((x+1)^6+(y+1)^6-2)+6*((x-1)^6+(y-1)^6-4000001/2000000)*(y-1)^5*((x-1)^6+(y+1)^6-2)*((x+1)^6+(y+1)^6-2)+6*((x-1)^6+(y-1)^6-4000001/2000000)*((x+1)^6+(y-1)^6-1999999/1000000)*(y+1)^5*((x+1)^6+(y+1)^6-2)+6*((x-1)^6+(y-1)^6-4000001/2000000)*((x+1)^6+(y-1)^6-1999999/1000000)*((x-1)^6+(y+1)^6-2)*(y+1)^5
