#include<iostream>
using namespace std;

int main(){
    int N;
    cin>>N;
    if(N<0){
        cout<<"Invalid input";
        return 0;
    }
    for (int i=1;i<=N;i++){
        for(int j=1;j<=N-1;j++)
            cout<<" ";
        for (int k=1;k<=(2*i-1));k++)
            cout<<"*";
        cout<< endl;
    }
    return 0;
}