#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;


int main(){
  int N;
  cin >> N;

  vector<int> ret;
  rep(i,N){
    if((i+1)%2 == 1) ret.push_back(i+1);
  }

  rep(i,ret.size()){
    if(i>0) cout << " ";
    cout << ret[i];
  }
  cout << endl;
  
  return 0;
}