import java.util.Scanner;

public class PrintSquare

{

  public static void print(int count)
  {
    for (int row = 0; row < count; row++) {

      for (int col = 0; col < count; col++) {
        System.out.print("*");
      }
      System.out.println();
    }

  }

  public static void main(String[] args)
  {

    Scanner in = new Scanner(System.in);
    int count = in.nextInt();

    while (count > 1 && count <= 30) {
      print(count);
      count = in.nextInt();
    }
  }

}