#include<bits/stdc++.h>
using namespace std;
int n,a[20][20]; 
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            if(i<=j) a[i][j]=i;
            else a[i][j]=j;
        }
         
    }
        for(int i=1;i<=n;i++){
            for(int j=1;j<=n;j++){
                cout<<setw(3)<<a[i][j];
 
        }
    cout<<endl;
    }
 
    return 0;
}
/**************************************************************
	Problem: 1196
	User: suziqian
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/