import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int n= sc.nextInt();
        for (int i = 1; i <= n; i++) {
            int a1=n-i;
            int a2=i-1;
            System.out.println(a1>a2?a1*2+" ":a2*2+" ");
        }
    }
}