lst:=[[(a+b*x^n)^p*(c+d*x^n)^q*(e+f*x^n)^r*(a*c*e+(b*c*e*(n*p+n+1)+a*d*e*(n*q+n+1)+a*c*f*(n*r+n+1))*x^n+(b*d*e*(1+n*(2+p+q))+b*c*f*(1+n*(2+p+r))+a*d*f*(1+n*(2+q+r)))*x^(2*n)+b*d*f*(1+n*(3+p+q+r))*x^(3*n)),x,1,x*(a+b*x^n)^(p+1)*(c+d*x^n)^(1+q)*(e+f*x^n)^(1+r),1]]: