#include <cstdio> #include <cstring> #include <iostream> #include <string> #include <cmath> #include <bitset> #include <vector> #include <map> #include <set> #include <queue> #include <deque> #include <algorithm> #include <complex> #include <unordered_map> #include <unordered_set> #include <random> #include <cassert> #include <fstream> #define popcount __builtin_popcount using namespace std; typedef long long int ll; typedef pair<int, int> P; int main() { int n; cin>>n; int ans[301][301]; for(int i=0; i<n/2; i++){ for(int j=0; j<n/2; j++){ ans[i][j]=(i*n/2+j)*2+1; ans[i+n/2][j+n/2]=(i*n/2+j)*2+2; ans[i][n-1-j]=(i*n/2+j)*2+1+n*n/2; ans[i+n/2][n/2-1-j]=(i*n/2+j)*2+2+n*n/2; } } for(int i=0; i<n; i++){ for(int j=0; j<n; j++) cout<<ans[i][j]<<" "; cout<<endl; } return 0; }