import java.util.Scanner;

public class diamond_pattern

{

public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

System.out.println("Enter number of rows");

int n = sc.nextInt();

System.out.println("Enter number of colums");

int m = sc.nextInt();

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

{

//n = 4;

for (int j = 1; j<= n - 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 = 3; i >= 1; i--)

{

n = 3;

for (int j = 0; j<= n - 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();

}

}

}