#include <iostream> #include <algorithm> #include <cstring> #include <cmath> #include <cstdlib> #include <map> #include <set> #include <string> using namespace std; int n, i, j; int main() { cin.sync_with_stdio(false); cout.sync_with_stdio(false); cin >> n; for (i = 0; i < (1 << n); i++) { for (j = n-1; j >=0; j--) { if ((i & (1 << j)) == (1 << j)) { cout << 1; } else cout << 0; } cout << "\n"; } return 0; }