import java.util.Scanner; 

public class Four {
  public static void main(String[] args) {
    Scanner read = new Scanner(System.in); 
    System.out.print("What size: "); 
    int size = read.nextInt(); 
    for (int row = 0; row < size; row += 1) {
      for (int col = 0; col < size; col += 1) {
        if (col + row == size/2 || 
            col == size/2 && row >= size/3 || 
            row == size/2 && col < 3 * size / 4) {
          System.out.print("* ");  
        } else {
          System.out.print("  ");  
        }
      }
      System.out.println(); 
    }
  }
}