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