#include<bits/stdc++.h>
using namespace std;
int i,n,j,u;
int main(){
    cin>>n;
    u=n;
    for(i=n/2+1;i>=2;i--){
        for(j=n-u;j>=1;j--){
            cout<<" ";
        }
        for(j=1;j<=i*2-1;j++){
            cout<<"*";
        }
        cout<<endl;
        u--;
    }
    u=1;
    for(i=1;i<=n/2+1;i++){
	    for(j=n-u;j>=n/2+1;j--){
	        cout<<" ";
	        }
	    for(j=1;j<=u*2-1;j++){
	        cout<<"*";
	    }
	    cout<<endl;
	    u++;
	}
	return 0;
}
/**************************************************************
	Problem: 1073
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/