/*

* PROGRAM : Java Program to generate Diamond shape number pattern.

* FILE : DiamondShape.java

* CREATED BY: Santosh Hembram

* DATED : 14-09-20

*/

import java.util.Scanner;

class DiamondShape{

public static void main (String args[]) {

Scanner sc = new Scanner(System.in);

System.out.print("Enter the number of rows: ");

int rows = sc.nextInt();

for(int i=1; i<=rows; i++) {

for(int j=1; j<=rows-i; j++) {

System.out.print(" ");

}

for(int k=i; k>=1; k--) {

System.out.print(k);

}

for(int l=2; l<=i; l++) {

System.out.print(l);

}

System.out.println();

}

for(int i=rows-1; i>=1; i--){

for(int j=0; j<=rows-1-i; j++){

System.out.print(" ");

}

for(int k=i; k>=1; k--){

System.out.print(k);

}

for(int l=2; l<=i; l++){

System.out.print(l);

}

System.out.println();

}

}

}