// JavaExp1.java
// Author: Chen Yang
import java.io.*;
import java.lang.Math;
public class JavaExp1
{
public static void main(String[] argv)
{
int pn=Integer.parseInt(argv[0]);
for (int i=1;i<=pn;i++)
{
if (i<=pn/2)
{
for (int j=1;j<=(pn/2-i+1);j++)
{
System.out.print(" ");
}
for (int k=1;k<=2*(i-1)+1;k++)
{
System.out.print(i);
}
System.out.print("n");
}
else
{
for (int j=1;j<=(pn/2-(pn-i));j++)
{
System.out.print(" ");
}
for (int k=1;k<=2*(pn-i)+1;k++)
{
System.out.print(i);
}
System.out.print("n");
}
}
}
}
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