lst=[["1/(-1-x^(1/2))^(1/2)/(-1+x^(1/2))^(1/2)/(1+x)^(1/2)","x",1],
["1/(a-b*x^(1/2))^(1/2)/(a+b*x^(1/2))^(1/2)/(b^2*x+a^2)^(1/2)","x",1],
["(a-b*x^n)^p*(a+b*x^n)^p*(c+d*x^(2*n))^q","x",1],
["(a-b*x^n)^p*(a+b*x^n)^p*(a^2+b^2*x^(2*n))^p","x",1],
["(c+d*x^(2*n))^p/(a-b*x^n)/(a+b*x^n)","x",1],
["(a-b*x^(1/2*n))^p*(a+b*x^(1/2*n))^p*(a^2*d*(p+1)/b^2/(1+(-n*p-2*n-1)/n)+d*x^n)^((-n*p-2*n-1)/n)","x",1]]