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