class A{
public static void main(String[] args){
System.out.println("请输入倒等腰三角形的行数");
Scanner s = new Scanner(System.in);
int row=s.nextInt();
for(int i=1;i<=row;i++){
for(int j=1;j<=i-1;j++){
System.out.print(" ");
}
for(int k=1;k<=2*(row-i)+1;k++){
System.out.print("*");
}
System.out.println();
}
}
}