import java.util.*;
class Pattern_17{
public static void main(String
args[]){
Scanner sc= new Scanner(System.in);
System.out.println("Enter
no of rows");
int n= sc.nextInt();
int r,c=0;
char ch='*';
for(r=1;r<=n;r++)
{
for(c=1;c<=r;c++)
{
if(c==1 ||c==r|| r==n ) System.out.print(ch);
else System.out.print("
");
}
System.out.println();
}
}}