#include <fstream>

using namespace std;

int main()
{
    ifstream cin("order.in");
    ofstream cout("order.out");
    int n,m=2;
    cin>>n;
    if(n%2==0){
    for(int i=0;i<(n-1)/2;i++)
    {
        cout<<m<<" ";
        m+=2;
    }
    m=1;
    for(int i=0;i<=(n-1)/2;i++)
    {
        cout<<m<<" ";
        m+=2;
    }
    cout<<n;
    }

    if(n%2==1){
    for(int i=0;i<(n-1)/2;i++)
    {
        cout<<m<<" ";
        m+=2;
    }
    m=1;
    for(int i=0;i<(n-1)/2;i++)
    {
        cout<<m<<" ";
        m+=2;
    }
    cout<<n;
    }

    return 0;
}