#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,b=1,j=1,a,c=1,t;
    cin>>n;
    a=n;
    t=n;
    for(b;b<=n;b++){
    	c=1;
    	j=1;
    	for(j;j<b;j++){
    		cout<<" ";
    	}
    	for(c;c<=(t*2-1);c++){
    		cout<<a;
    	}
    	cout<<endl;
    	a=a-1;
    	t=t-1;
    }
}
/**************************************************************
	Problem: 1788
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/