#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int num, count;
while (cin >> num , num) {
for (int i = 1; i < pow(2, num); i *= 2) {
count = 0;
for (int n = i; count != num; n *= 2, count++) {
cout << n << " ";
}
cout << endl;
}
cout << endl;
}
return 0;
}