#include <iostream>
using namespace std;
 
int main() {
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
 
  int n, i, j;
  cin >> n;
  int a[n][n];
  for (i=0; i<n/2; i++){
     for (j=0; j<n/2; j++) a[i][j]=0;
     for (; j<n; j++) a[i][j]=1;
  }
  for (; i<n; i++){
     for (j=0; j<n/2; j++) a[i][j]=1;
     for (; j<n; j++) a[i][j]=0;
  }
  for (i=0; i<n; i++){
     for (j=0; j<n; j++) cout << a[i][j];
     cout << '\n';
  }
  return 0;
}

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

NA==

4