pattern20.java

import java.util.*;

public class pattern20 {

    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);

        int n = scn.nextInt();
        
        for(int i = 1;i<=n;i++){
            for(int j = 1;j<=n;j++){
                    if(j == 1 || j == n){
                    System.out.print("*\t");
                    }else if(i > n/2 && (i == j || i + j == n + 1)){
                        System.out.print("*\t");
                    }else{
                        System.out.print("\t");
                    }
                    
                }
            System.out.println();
        }

    }
}


/* 

input = 5;

output:

*				*
*				*
*		*		*
*	*		*	*
*				*

*/