#include <bits/stdc++.h>
using namespace std;
int main (){
  int j,i,n,m,a;
  cin>>n;
  for(i=1;i<=n;i++){
    for(m=1;m<=n-i;m++) cout<<" ";
    for(a=1;a<=i*2-1;a++) cout<<i;
    for(m=1;m<=n-i;m++) cout<<" ";
	cout<<endl;
}
}
/**************************************************************
	Problem: 1008
	User: wtq001
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/