#pragma GCC optimize("Ofast") #include #include #include using namespace std; using namespace __gnu_pbds; using ll = long long; using ull = unsigned long long; using pii = pair; using pll = pair; #define rep(i, n) for(int i = 0; i < (n); ++i) #define all(x) (x).begin(),(x).end() constexpr char ln = '\n'; constexpr long long MOD = 1000000007; //constexpr long long MOD = 998244353; template inline bool chmax(T1 &a, T2 b) { if (a < b) { a = b; return true;} return false; } template inline bool chmin(T1 &a, T2 b) { if (a > b) { a = b; return true;} return false; } inline int popcount(int x) {return __builtin_popcount(x);} inline int popcount(long long x) {return __builtin_popcountll(x);} void print() { cout << "\n"; } template void print(const T &x, const Args &... args) { cout << x << " "; print(args...); } /////////////////////////////////////////////////////////////////////////////////////////////////////////////// int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int N; cin >> N; vector A; for (int i = 1; i <= N; i++) { if (i&1) A.emplace_back(i); } for (int i = 1; i <= N; i++) { if (~i&1) A.emplace_back(i); } vector> ans(N, vector(N)); rep(i,N) { rep(j,N) { if (A[j]==i+1) { int cur = j; for (int k = i; k < i+N; k++) { ans[i][k%N] = A[cur%N]; cur++; } break; } } } rep(i,N) { rep(j,N) cout << ans[i][j] << " "; cout << ln; } }