$\left\{\begin{matrix}\\m=\frac{2n_{1}}{n}-\frac{i\ln(-4\sqrt{3}i+7i)}{\pi n}\text{, }n_{1}\in \mathrm{Z}\text{, }n\neq 0\text{; }m=\frac{2n_{2}}{n}-\frac{i\ln(4\sqrt{3}i+7i)}{\pi n}\text{, }n_{2}\in \mathrm{Z}\text{, }n\neq 0\text{, }&\text{unconditionally}\\m\in \mathrm{C}\text{, }n=0\text{, }&\exists n_{2}\in \mathrm{Z}\text{ : }n_{2}=\frac{i\ln(4\sqrt{3}i+7i)}{2\pi }\text{ or }\exists n_{1}\in \mathrm{Z}\text{ : }n_{1}=\frac{i\ln(-4\sqrt{3}i+7i)}{2\pi }\end{matrix}\right.$