#include<bits/stdc++.h>

using namespace std;
using ll=long long;
#define rep(i,n) for(int i = 0; i < (n); i++)
#define rep2(i, a, n) for(int i = (a); i < (n); i++)
#define rep3(i, n, b) for(int i = 0; i < (n); i+=b)
#define rep4(i, a, n, b) for(int i = (a); i < (n); i+=b)

int main(){
  cin.tie(nullptr);ios_base::sync_with_stdio(false);
  int n;
  cin>>n;
  vector<int> a;
  rep2(i,1,n+1)a.push_back(i);
  rep3(i,n,2)cout<<a[i]<<" ";
  cout<<endl;
}