$\left\{\begin{matrix}y>\frac{29}{41x_{69}}\text{, }&x_{69}<0\\y\in \mathrm{R}\text{, }&x_{69}=0\\y<\frac{29}{41x_{69}}\text{, }&x_{69}>0\end{matrix}\right.$

$\left\{\begin{matrix}x_{69}>\frac{29}{41y}\text{, }&y<0\\x_{69}\in \mathrm{R}\text{, }&y=0\\x_{69}<\frac{29}{41y}\text{, }&y>0\end{matrix}\right.$