#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < int(n); i++)
#define rrep(i,n) for(int i = int(n)-1; i >= 0; i--)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define pb push_back
using namespace std;
using ll = long long;
using Pi = pair<int,int>;
using Pll = pair<ll,ll>;
template<class T> bool chmax(T &a, const T &b) {if(a < b) {a = b; return true;} return false;}
template<class T> bool chmin(T &a, const T &b) {if(b < a) {a = b; return true;} return false;}
int dx[] = {1, 0,-1, 0, 1, 1,-1,-1};
int dy[] = {0, 1, 0,-1, 1,-1, 1,-1};
ll mod = 998244353;
ll MOD = 1000000007;
int inf = 1001001001;
ll INF = 1001001001001001001;
int main() {
    int V,D;
    cin >> V >> D;
    if(D == 1) {
        rep(i,V) {
            rep(j,V) {
                cout << 1;
            }
            cout << endl;
        }
    }
    else {
        rep(i,V) {
            rep(j,V) {
                if(i == 0 || j == 0) {
                    cout << 1;
                }
                else {
                    cout << 0;
                }
            }
            cout << endl;
        }
    }
}