#include using namespace std; struct iofast_t { iofast_t() { ios::sync_with_stdio(false); cin.tie(nullptr); } } iofast; struct uns_t {} uns; template auto vec(Element init, Head arg, Args ...args) { if constexpr (sizeof...(Args) == 0) return std::vector(arg, init); else return std::vector(arg, vec(init, args...)); } template auto vec(uns_t, Head arg, Args ...args) { return vec(Element(), arg, args...); } template > T &chmin(T &l, T r, Compare &&f = less()) { return l = min(l, r, f); } template > T &chmax(T &l, T r, Compare &&f = less()) { return l = max(l, r, f); } int main() { int n; cin >> n; auto m = vec(uns, n, n); for (int i = 0; i < n; ++i) { for (int j = 0; j < n; ++j) { if (j <= i - (i < n / 2)) { m[i][j] = 2; continue; } if (i < n / 2 && i == j) { m[i][j] = 1; continue; } m[i][j] = 0; } } for (auto &v : m) { cout << v[0]; for (int i = 1; i < n; ++i) { cout << ' ' << v[i]; } cout << endl; } }