#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,cnt=0;
    cin>>n;
    cnt=n*n;
    int a[15][15]={0};
    for(int i = 0;i<n;i++)
    {
        for(int j = 0;j<n;j++)
        {
            a[i][j] = cnt;
            cnt--;
        }
    }
    for(int i = 0;i<n;i++)
    {
        for(int j = 0;j<n;j++)
        {
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;       
    }
}

/**************************************************************
	Problem: 1185
	User: wuyichen
	Language: C++
	Result: Wrong Answer
****************************************************************/