import java.util.*;
public class test3 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
while(scan.hasNextInt()){
int n = scan.nextInt();
for (int i = 0; i < n; i++) {
for(int j = 0;j < n; j++) {
if(i == j) {
System.out.print("*");
}else if (i+j+1 == n) {
System.out.print("*");
}else{
System.out.print(" ");
}
}
System.out.println();
}
}
}
}