#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef long long ll;
typedef long double ld;
typedef pair<int,int> P;

int main() {
  int k;
  cin >> k;
  vector<int> res;
  auto dfs = [&](auto& f, int l, int r)->void{
    if (l > r) return ;
    if (l == r) {
      res.emplace_back(l);
      return ;
    }
    int m = (l + r) / 2;
    res.emplace_back(m);
    f(f, l, m - 1);
    f(f, m + 1, r);
  };

  dfs(dfs, 1, (1 << k) - 2);
  
  cout << (1 << k) - 1 << " ";
  for (auto e : res) cout << e << " ";
  
  cout << endl;
  return 0;
}