#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define tezz std::ios::sync_with_stdio(false);std::cout.tie(NULL);std:cin.tie(NULL);

int main() {
    ll n;
    cin>>n;
    for(ll i=0;i<n;i++){
        for(ll j=0;j<n;j++){
            ll a=(i*2-j+n)%n+1;
            cout<<a<<" ";
        }
        cout<<endl;
    }
        
}