#include <iostream>
using namespace std;

int main()
{
    int a,b,c,d,e,f,g;
    cin>>a;
    for(b=1;b<=a;b++){
        for(c=1;c<=a-b;c++){
            cout<<" ";
        }
        for(d=1;d<=2*b-1;d++){
            cout<<"*";
        }
        cout<<endl;
    }
    for(e=1;e<=a-1;e++){
        for(f=e-1;f>=0;f--){
            cout<<" ";
        }
        for(g=2;g<=2*(((a-1)+1)-e);g++){
            cout<<"*";
        }
        cout<<endl;
    }
    return 0;
}

c++

n = int(input())
for i in range(1, n + 1, 1):
    print(" " * (n - i) + "*" * (i * 2 - 1) + " " * (n - i))
for i in range(n-1,0,-1):
    print(" " * (n - i) + "*" * (i * 2 - 1) + " " * (n - i))
 

#include<bits/stdc++.h>
using namespace std;
int main() {
	int i,j,b;
	cin>>b;
	for(i=1; i<=b; i++) {
		for(j=1; j<=b-i; j++) {
			printf(" ");
		}
		for(j=1; j<=2*i-1; j++) {
			printf("*");
		}
		printf("\n");
	}
	for(i=b-1; i>=1; i--) {
		for(j=1; j<=b-i; j++) {
			printf(" ");
		}
		for(j=1; j<=2*i-1; j++) {
			printf("*");
		}
		printf("\n");
	}
}