<span style="font-family:宋体;font-size:14pt;">输入</span><span style="font-size:14pt;">n</span><span style="font-family:宋体;font-size:14pt;">，然后输出一个正方形的图形。</span><span style="font-size:14pt;"></span> 

<span style="font-family:宋体;">样例</span><span>1</span> 

<span style="font-family:宋体;">输入</span><span> 3</span> 

<span style="font-family:宋体;">输出</span> 

<span style="font-family:宋体;"></span><span>1</span><span>11 </span>

<span>222 </span>

<span>333 </span>

<span></span>

<span style="font-family:宋体;">样例</span><span>2</span> 

<span style="font-family:宋体;">输入</span><span> 5</span> 

<span style="font-family:宋体;">输出</span><span> </span>

<span>11111</span> 

<span></span><span>22222</span> 

<span>33333</span> 

<span>44444</span> 

<span>55555</span>