j1j2j3l1l2l3=12⁢j2+l2+j3-l312⁢j1-l1+j3+l312⁢j1+l1+j2-l212⁢j2+l2-j3+l312⁢-j1+l1+j3+l312⁢j1+l1-j2+l2.