using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var ans = new List<int>();
        for (var i = 1; i <= n; i += 2) ans.Add(i);
        WriteLine(string.Join(" ", ans));
    }
}