#include <bits/stdc++.h>
using namespace std;
// #include <atcoder/all>
// using namespace atcoder;

typedef long long ll;
typedef pair<ll,ll> P;
typedef pair<P,ll> PLL;
typedef pair<P,P> PP;
typedef vector<ll> llVEC;
typedef vector<P> PVEC;
typedef priority_queue<P,PVEC,greater<P> > PPQ;
typedef priority_queue<ll, llVEC, greater<ll> > llPQ;

#define rep(i,a,n) for(ll i = a;i < n;i++)
#define rrep(i,a,n) for(ll i = n-1; i >= a;i--)
#define LINF (ll)1e18
#define INF (int)1e9
#define fs first
#define sc second

template<typename T>
ll sz(vector<T> &vec){ return (ll)vec.size(); }
ll sz(string &s){ return (ll)s.size(); }
ll gcd(ll a,ll b){ return ((!b) ?a :gcd(b, a%b)); }
ll lcm(ll a,ll b){ return a / gcd(a,b) * b; }
bool checkindex(ll i,ll n){ return (i < n && i >= 0); }

int main(){
    ll n;
    cin >> n;
    ll memo[2*n] = {};
    rep(i,0,2*n){
        if(i >= n) memo[i] = memo[i-n];
        else if(i % 2 == 0) memo[i] = i/2+1;
        else memo[i] = (n+1)/2+i/2+1;
    }

    rep(i,0,n){
        rep(j,0,n){
            cout << memo[i+j] << ((j == n-1)?"\n":" ");
        }
    }

    return 0;
}