#include<bits/stdc++.h>
using namespace std;
int main(){
  int i,j,n,s;
  cin>>n;
  int a[2*n+1][2*n+1];
  for(i=0;i<n+1;i++){
  	s=n;
  	for(j=0;j<n+1;j++){
      a[i][j]=s;
      if(j<i) s--;}
  	for(j=n+1;j<2*n+1;j++){
      if(j>2*n-i) s++;
	  a[i][j]=s;}}
  for(i=n+1;i<2*n+1;i++){
  	s=n;
  	for(j=0;j<n+1;j++){
      a[i][j]=s;
      if(j<2*n-i) s--;}
  	for(j=n+1;j<2*n+1;j++){
      if(j>i) s++;
	  a[i][j]=s;}}
  for(i=0;i<2*n+1;i++){
  	for(j=0;j<2*n+1;j++){
  		cout<<setw(2)<<a[i][j];} 
  		cout<<endl;}
  return 0;
}
/**************************************************************
	Problem: 1209
	User: wtq001
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/