#include <iostream>
int main()
{

	freopen("in.doc", "r", stdin);
	freopen("out.doc", "w", stdout);
	int n,a;
	std::cin>>n;
	a=n;
	for(int i=0;i<n;i++)
	{
		a--;
		if(a!=0)
		{
			for(int j=0;j<a;j++)
			{
				std::cout<<" ";
			}	
		}
		if(i==0)
		{
			std::cout<<"1"<<std::endl;
		}
		else
		{
			for(int k=0;k<=i;k++)
			{
				std::cout<<k+1;
			}
			for(int l=i;l>0;l--)
			{
				std::cout<<l;
			}
			std::cout<<std::endl;
		}
		
	}
	fclose(stdin);
	fclose(stdout);
	
return 0;
}

#include <bits/stdc++.h>
using namespace std;
void h(int a){
	for(int i=1;i<=a;i++) {
		cout<<i;
	}
	for(int i=a-1;i>=1;i-=1) {
		cout<<i;
	}
}
int main(){
	freopen("D:/ee.in", "r", stdin);
	freopen("D:/oo.out", "w", stdout);

	
	int n;
	cin>>n;
	
	for(int i=1;i<=n;i++){
		for(int j=1;j<=(n-i);j++){
			cout<<" ";
		}
		h(i);
		cout<<endl;
	}
	fclose(stdin);
	fclose(stdout);
}