#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,a[20][20],b=1;
    cin>>n;
    for(i=n;i>=1;i--){
        for(j=1;j<=n;j++){
        a[i][j]=b;
        b++;
    }
    }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
        cout<<setw(3)<<a[i][j];
    }
    cout<<endl;
    }
}
 
/**************************************************************
	Problem: 1185
	User: zhenghaoxuan
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/