#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b=0,c;
	cin>>a;
	c=a;
	for(int i=1;i<=a;i=i+1){
		for(int x=c;x>i;x--){
			cout<<' ';
		}
		for(int j=1;j<=(a-(a-i))*2-1;j++){
			cout<<j;
		}
		
		cout<<endl;
}
} 
/**************************************************************
	Problem: 1072
	User: zhengzihao
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2072 kb
****************************************************************/