#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using vin=vector<int>;
using vll=vector<long long>;
using vvin=vector<vector<int>>;
using vvll=vector<vector<long long>>;
using vstr=vector<string>;
using vvstr=vector<vector<string>>;
using vch=vector<char>;
using vvch=vector<vector<char>>;
using vbo=vector<bool>;
using vvbo=vector<vector<bool>>;
using vpii=vector<pair<int,int>>;
using pqsin=priority_queue<int,vector<int>,greater<int>>;
#define mp make_pair
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep2(i,s,n) for(int i=(s);i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define decp(n) cout<<fixed<<setprecision((int)n)
const int inf=1e9+7;
const ll INF=1e18;

int main(){
    int n;cin>>n;
    vvin a(n+1,vin(n+1));
    int ni,nj;
    rep2(i,1,n+1){
        ni=i;nj=i;
        rep(j,n){
            a[ni][nj]=i;
            ni++;nj--;
            if(ni>n)ni=1;
            if(nj<1)nj=n;
        }
    }
    rep2(i,1,n+1){
        rep2(j,1,n){
            cout<<a[i][j]<<" ";
        }
        cout<<a[i][n]<<endl;
    }
}