package com.pack;
import java.util.Scanner;
public class Zhijiao {
public static void main(String[] args){
Scanner input=new Scanner(System.in);
System.out.print("请输入层数:");
int n=input.nextInt();
for(int i=1;i<=n;i++){
for(int j=1;j<=n-i+1;j++){
System.out.print("*");
}
for(int k=1;k<=i-1;i++){
System.out.print(" ");
}
System.out.println();
}
}
}