/*N=5 i space digit

1 1 4 1

2 1 2 3 2

3 2 1 3 2 3

4 3 2 1 4 1 4

5 4 3 2 1 5 0 5

1 2 3 4 5 i n-i i

*/

import java.util.Scanner;

public class Ptrn36

{

public static void main(String[] args)

{

Scanner sc=new Scanner(System.in);

System.out.println("enter the no of lines: ");

int n=sc.nextInt();

for(int i=1;i<=n;i++) //row

{

for(int j=1;j<=n-i;j++) //space

{

System.out.print(" ");

}

for(int j=i;j>0;j--) //digits

{

System.out.print(j+" ");

}

System.out.println();

sc.close();

}

}

}