The number of distinct real values of λ for which the lines (x-1)/1=(y-2)/2=(z+3)/(λ^2) and (x-3)/1=(y-2)/(λ^2)=(z-1)/2 are coplanar is:

The number of distinct real values of $\displaystyle \lambda$ for which the lines $\displaystyle \frac{x-1}{1}=\frac{y-2}{2}=\frac{z+3}{\lambda^2}$ and $\displaystyle \frac{x-3}{1}=\frac{y-2}{\lambda^2}=\frac{z-1}{2} \quad$ are coplanar is :