#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ALL(v) v.begin(), v.end()
typedef long long ll;

#include <bits/stdc++.h>
using namespace std;

int main() {
  ll n;
  cin>>n;
  
  for(int i=1;i<=n;i+=2){
    if(i>1) cout<<" ";
    cout<<i;
  }
  cout<<endl;
    

  return 0;
}