#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m,i,j,s=1;
    cin>>m;
    n=m;
    int a[n][m];
    for(i=0;i<n;i++){
        for(j=n-1;j>=0;j--) {
            a[i][j]=s;
            s++;
        }
    }
    for(i=0;i<n;i++){
        for(j=0;j<m;j++) {
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1189
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/