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

	return 0;
}

/**************************************************************
	Problem: 1788
	User: linweilun
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/