import java.util.*;
public class MyClass {
    public static void main(String args[]) {
        Scanner sc=new Scanner (System.in);
        int n=sc.nextInt();
        int k=0;
      for(int i=0;i<n;i++){
          //spaces
          for(int j=n-i-1;j>0;j--){
              System.out.print(" ");
          }
          //numbers
          for(k=0;k<=i;k++){
              System.out.print(i+k+1);
          }
          for(int l=0;l<i;l++){
              System.out.print(i+k-1-l);
          }
          //spaces
          for(int j=n-i-1;j>0;j--){
              System.out.print(" ");
          }
          System.out.println();
      }
    }
}