#include <iostream> using namespace std; int a[50][50]; int main() { int n; cin >> n; for (int k=1;k<=n/2+1;k++) { for (int i=k;i<=n-k+1;i++) { for (int j=k;j<=n-k+1;j++) { a[i][j]=k; } } } for (int i=1;i<=n;i++) { for (int j=1;j<=n;j++) { cout<<a[i][j]; if (j!=n) cout <<" "; } cout<<endl; } return 0; }