#include<iostream>
using namespace std;
int main(){
    int N;
    cin>>N;
    if(N<0){
        cout<<"Invallid input";
    }
    else{
        for(int i=1;i<=N;i++){
            for(int j=1;j<=2*i-1;j++){
                cout<<" ";
            }
            for (int j=1;j<=2*i-)
            {
                cout<<"*";
            }
            cout<<endl;
        }
    }
    return 0;
}