#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j;
    int a[12][12];
    cin>>n;
    for(i=1;i<=n;i++){
        for(j=1;j<=n+1-i;j++){
            a[i][j]=i+j-1;
        } 
        for(j=n;j>=i;j--){
            a[n+1-i][j]=n+i-j;
        }  
    }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1193
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/