#include <iostream>
using namespace std;
int main()
{
int n;
cin >> n;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= i; j++)
{
if ((i + j) % 2 == 0)
{
cout << " 1";
}
else
{
cout << " 0";
}
}
cout << endl;
}
return 0;
}
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