#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	int N;
	cin >> N;
	vector ans(N, vector(N, -1));
	int y = 0, x = N / 2, cur = 0;
	while (true) {
		ans[y][x] = cur;
		y = (y - 1 + N) % N;
		x = (x + 1) % N;
		if (ans[y][x] != -1) {
			x = (x - 1 + N) % N;
			y = (y + 2) % N;
		}
		cur = (cur + 1) % N;
		
		if (ans[y][x] != -1) break;
	}
	REP(i, N) REP(j, N) printf("%d%c", ans[i][j] + 1, " \n"[j + 1 == N]);
}