\left[ \begin{array}{ccccc}
0 & 1 & 0 & \ldots & 0 \\
0 & 0 & 1 & \ldots & 0 \\
\vdots & \vdots & \vdots & \ddots & \vdots \\\
0 & 0 & 0 & \ldots & 1 \\
* & * & * & \ldots & * 
\end{array}
\right]