#include <iostream>
using namespace std;
int main()
{
cout<<"***********CHRISTMAS TREE**************\n\n";
int a,b;
string c,d;
cout<<"Enter the number of rows: ";
cin>>a;
for(b=1; b<=a; b++)
{
for(int x=a-1; x>=b; x--)
{
cout<<" ";
}
for(int x=1; x<=b; x++)
{
cout<<"* ";
}
cout<<endl;
}
}
