#include<iostream>
using namespace std;
int a[1000], b[1000];
int main()
{
    int n, x, i, sum = 0, cnt = 0;
    cin >> n;
    for (i = 0; i < 202; i++)
    {
        cin >> x;
        if (sum <= n * n) {
            sum += x;
            b[i] = x;
            cnt++;
        }
        else break;
    }
    int num = b[0];
    for (i = 1; i < cnt; i++)
    {
         while (num < (num + b[i]))
           {
                if (i % 2 == 0) {
                    a[num] = 0;
                    num++;
                }
                else {
                    a[num] = 1;
                    num++;
                }
            }
        }
        for (i = 0; i < n*n; i+=n)
        {
            for (int j = 0; j < n; j++)
            {
                cout << a[i];
            }
            cout << endl;
        }
        return 0;
    }