#include<bits/stdc++.h>      
using namespace std;
int main(){
    int a[15][15]={0},n,i=0,j=0,b;
    cin>>n;
    b=n*n-n+1;
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            a[i][j]=b;
            b++;
        }
        b=b-n*2;
    }
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            cout<<setw(3)<<a[j][i];
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1187
	User: linzihang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/