#include<iostream>
using namespace std;
int a[10000];
int main()
{

	int n;
	cin >> n;
	int sum = 0;
	int x0, x1;
	for (;;)
	{
		
		cin >> x0;
		for (int x = 1; x <= x0; x++)
		{
			sum++;
			a[sum] = 0;

		}
		
		cin >> x1;
		for (int y = 1; y <= x1; y++)
		{
			sum++;
			a[sum] = 1;

		}
		if (sum == n * n)
		{
			break;
		}
		
		
	}
	for (int i = 1; i <= n * n; i++)
	{
		if (i % n != 0)
		{
			cout << a[i];
		}
		else {
			cout << a[i] << endl;
		}
	}
	return 0;
}80 0 10 360 4 211 2 400 2 12 10 16 2 78 2 78 2 78 2 18 2 23 11 24 2 78 2 78 2 78 2 78 2 78 2 28 2 48 2 72 2 78 2 78 2 78 2 516 2 400 2 93 4 40 10 575 2 400 2 38 2 78 2 78 2 78 2 18 2 58 2 78 2 78 2 78 2 78 2 78 2 28 2 48 2 72 2 78 2 78 2 78 2 28 43 445 2 400 2 93 4 40