#include <iostream>
using namespace std;
int main() {
for (int i = 0; i <= 1; i++)
for (int j = 0; j <= 1; j++)
for (int k = 0; k <= 1; k++)
for (int l = 0; l <= 1; l++)
for (int m = 0; m <= 1; m++) {
cout << i << j << k << l << m << endl;
}
return 0;
}
