#include #define rep(i, n) for (int i = 0; i < (n); ++i) #define srep(i, s, t) for (int i = s; i < t; ++i) #define drep(i, n) for (int i = (n)-1; i >= 0; --i) using namespace std; typedef long long int ll; typedef pair P; #define MAX_N 200005 int main() { int n; cin >> n; int a[n][n]; rep(i, n) rep(j, n) a[i][j] = 0; rep(i, n) { rep(j, n) { if (j >= i) a[i][j] = 2; if (j == i && i < n / 2) a[i][j] = 1; } } rep(i, n) { rep(j, n) cout << a[i][j]; cout << endl; } return 0; }