#include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <math.h>
#include <cmath>
#include <limits.h>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <functional>
#include <stdio.h>
using namespace std;

long long MOD = 1000000007;

vector<int> A;
vector<int> done;
string ans = "";

void dfs( int l, int c, int r ) {
    
    if ( done[c] ) { return; }
    done[c] = 1;
    
    ans += to_string( A[c] ) + " ";    
    
    dfs( l,(l+c)/2, c );
    dfs( c,(r+c)/2, r );
    
}


int main() {
    
    int K;
    cin >> K;
    
    int N = pow(2,K)-2;
    
    A.resize(N);
    done.resize(N+1);
    for ( int i = 0; i < N; i++ ) {
        A[i] = i+1;
        done[i+1] = 0;
    }
    
    dfs( 0, N/2, N );
    
    cout <<  N+1 << " " << ans.erase( ans.length()-1, 1 ) << endl;
    
    return 0;
}