#include<iostream>
#include<conio.h>
#include<math.h>
using namespace std;
int main()
{
    unsigned int n,y=1,x=1;
    cout<<"please enter n";
    cin>>n;
    while(y<=n)
    {
      while(x)
    {
      cout<<"*";
      x--;
    }
    cout<<endl;
    y++;
    x=y;
    }
    getch();
    return 0;
}