#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,i,d,j,s;
    cin>>n;
    for(d=1;d<=n-1;d++){
        cout<<" ";
    }
    for(d=1;d<=n;d++){
        cout<<"*";
    }
    printf("\n");
    for(d=1;d<=n-1;d++){
        for(j=1;j<=n-1-d;j++){
            cout<<" ";
        }
        cout<<"*";
        for(i=1;i<=n+(d-1)*2;i++){
            cout<<" ";
        }
        cout<<"*";
        printf("\n");
    }
    for(d=n-2;d>=1;d--){
        for(i=1;i<=n-d-1;i++){
            cout<<" ";
        }
        cout<<"*";
        for(j=1;j<=n+(d-1)*2;j++){
            cout<<" ";
        }
        cout<<"*";
        printf("\n");
    }
    for(d=1;d<=n-1;d++){
        cout<<" ";
    }
    for(d=1;d<=n;d++){
        cout<<"*";
    }
}
/**************************************************************
	Problem: 1011
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:3 ms
	Memory:2076 kb
****************************************************************/