import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
         Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        for(int i=0;i<n;i++){
             int value=i+1;
            for(int j=0;j<n-i;j++){
                System.out.print(" ");
            }
            for(int j=0;j<i;j++){
                System.out.print(value);
                value--;
            }
            for(int j=0;j<=i;j++){
                System.out.print(j+1);
            }
            for(int j=0;j<n-i;j++){
                System.out.print(" ");
            }
            System.out.println( );
        }
    }
}