#include<bits/stdc++.h>
using namespace std;
int main(){
  int i,j,n,m=1;
  int a[10][10];
  cin>>n;
  for(i=0;i<n;i++){
  for(j=0;j<n-i;j++){
  a[j][i+j]=m; 
  a[i+j][j]=m;
  m++;}
  }
  for(i=0;i<n;i++){
  for(j=0;j<n;j++) cout<<setw(5)<<a[i][j];
  cout<<endl;
  }
  

return 0;
}

/**************************************************************
	Problem: 1404
	User: wtq001
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2072 kb
****************************************************************/