L^3 - 2*L^4 + L^5 - 5*L^3*M^2 + 6*L^4*M^2 - L^5*M^2 - 2*L^2*M^4 + 2*L^3*M^4 - 
 2*L^4*M^4 + 2*L^5*M^4 - L*M^6 - 3*L^2*M^6 + 7*L^3*M^6 - L^4*M^6 - 
 2*L^5*M^6 - M^8 - 4*L*M^8 + 5*L^2*M^8 - 3*L^3*M^8 + 4*L^4*M^8 - L^5*M^8 + 
 L*M^10 - 4*L^2*M^10 + 3*L^3*M^10 - 5*L^4*M^10 + 4*L^5*M^10 + L^6*M^10 + 
 2*L*M^12 + L^2*M^12 - 7*L^3*M^12 + 3*L^4*M^12 + L^5*M^12 - 2*L*M^14 + 
 2*L^2*M^14 - 2*L^3*M^14 + 2*L^4*M^14 + L*M^16 - 6*L^2*M^16 + 5*L^3*M^16 - 
 L*M^18 + 2*L^2*M^18 - L^3*M^18