import java.util.Scanner;

public class Main {
public static void main(String []args)
{
Scanner sc=new Scanner(System.in);
while(true)
{
int N= sc.nextInt();
if(N==0) break;
for(int i=0;i<N;i)
{
for(int j=0;j<N;j)
{
System.out.printf(“%d “,Math.abs(i-j)+1);
}
System.out.println();
}
System.out.println();
}
}
}