/*
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*/
package BASICJAVA;
import java.util.Scanner;
/**
*
* @author ABIR
*/
public class Print_Hollow_Rhombus_Number {
public static void main(String[]args){
Scanner abir=new Scanner(System.in);
System.out.println("Enter sample input");
int x=abir.nextInt();
System.out.println("sample output");
int c=1;
while (c<=x){
System.out.println ();
int d = 1;
while (d<=(x-c)){
System.out.print (" ");
d++;
}
if (c>1){
System.out.print (1);
}
int e = 1;
while (e<=(2*c-3)){
System.out.print (" ");
e++;
}
System.out.print (2*c-1);
c++;
}
int f = x + 1;
int j = x - 1;
while (f<=(2*x-1)){
System.out.println ();
int k = 1;
while (k<=(f-x)){
System.out.print (" ");
k++;
}
System.out.print (1);
int l = 1;
while (l<=(2*j-3)){
System.out.print (" ");
l++;
}
if (f<(2*x-1)){
System.out.print ((2*j-3));
}
f++;
j--;
}
System.out.println ();
System.out.println("=======================================================");
}
}