import java.util.Scanner;
class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.print("Enter the number of stars: ");
    int n = Integer.parseInt(sc.nextLine());
    //firstRow
     String stars = generateFrom("*",n*2);
      String spaces = generateFrom(" ",n);
      System.out.print(stars);
      System.out.print(spaces);
      System.out.print(stars);
      System.out.println();
    //Middle part
    String slash = generateFrom("/",(n*2)-2);
    String space = generateFrom(" ",n);
    String line = generateFrom("|",n);
    for(int i=0;i<n-2;i++){
    System.out.print("*");
    System.out.print(slash);
    System.out.print("*");
    if(i == ((n-1)/2-1)){
        System.out.print(line);
    }
    else{
        System.out.print(space);
    }
    
    System.out.print("*");
    System.out.print(slash);
    System.out.print("*");
    System.out.println();
}


     //lastRow
     
      System.out.print(stars);
      System.out.print(spaces);
      System.out.print(stars);
      System.out.println();
    
    
  }

  public static String generateFrom(String symbol, int numberOfStars){
    StringBuffer builder = new StringBuffer();
    for(int i = 0;i< numberOfStars;i++){
      builder.append(symbol);
    }
    return builder.toString();
  }
}