typedef long long ll;
typedef long double ld;
#include <bits/stdc++.h>
using namespace std;

int main() {
    ll n;
    std::cin >> n;
    
    for (int i = 0; i <= (n-1)/2; i++) {
        std::cout << 1+2*i;
        if(i!=(n-1)/2) std::cout << " ";
    }
    std::cout << std::endl;
}