#include <iostream> #include <algorithm> // for min function using namespace std; int main() { int n; cin >> n; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { int value = min(min(i, j), min(n - 1 - i, n - 1 - j)) + 1; cout << value << " "; } cout << endl; } return 0; }