#include using namespace std; using ll = long long; using ld = long double; using pll = pair; using tlll = tuple; //constexpr ll MOD = 1e9 + 7; constexpr ll MOD = 998244353; //constexpr ll MOD = ; ll mod(ll A, ll M) {return (A % M + M) % M;} constexpr ll INF = 1LL << 60; template bool chmin(T& a, T b) {if (a > b) {a = b; return true;} return false;} template bool chmax(T& a, T b) {if (a < b) {a = b; return true;} return false;} ll divceil(ll A, ll B) {return (A + (B - 1)) / B;} #define FINALANS(A) do {cout << (A) << '\n'; exit(0);} while (false) int main() { ll N; cin >> N; vector> S(N, vector(N, 0)); for (ll i = 0; i < N / 2; i++) { for (ll j = 0; j < i; j++) { S.at(i).at(j) = 2; } S.at(i).at(i) = 1; } for (ll i = N / 2; i < N; i++) { for (ll j = 0; j < i + 1; j++) { S.at(i).at(j) = 2; } } for (ll i = 0; i < N; i++) { for (ll j = 0; j < N; j++) { cout << S.at(i).at(j); } cout << '\n'; } }