#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; typedef unsigned int ui; const ll mod = 1000000007; const ll INF = (ll)1000000007 * 1000000007; typedef pair P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i=0;i--) #define Rep(i,sta,n) for(int i=sta;i=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) typedef long double ld; typedef complex Point; const ld eps = 1e-11; const ld pi = acos(-1.0); typedef pair LP; typedef pair LDP; typedef unsigned long long ul; int ans[300][300]; int main() { int n; cin >> n; rep(i, n / 2) { rep(j, n) { int x = i; int y = j; if (i % 2) { y = n - 1 - j; } ans[x][y] = 2 * n*i + 2 * j + 1; ans[x + n / 2][(y+n/2)%n] = 2 * n*i + 2 * j + 2; } } rep(i, n) { rep(j, n) { if (j > 0)cout << " "; cout << ans[i][j]; } cout << endl; } //stop return 0; }