import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        
        int n = 4;
        int m =5;
        
        // outer loop
        for (int i = 1; i <=n ; i++) {
            // inner loop
            for (int j = 1; j <= m; j++) {
                if (i==1 || i==n || j==1 || j==m) {
                    System.out.print("*");
                }
                else {
                    System.out.print(" ");
                }

            }
            System.out.println();
           
        }
        
    }
}