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

int sushu(int x);

vector <int> a;
int main()
{
    int n;scanf("%d",&n);
    for(int i=2;i<=n;i++) a.push_back(i);
    a.resize(n*(n/2));
    for(int i=0;i<a.size();i++)
        if(sushu(a[i])!=-1) cout<<a[i]<<" ";
    return 0;
}
int sushu(int x)
{
    if(x==1||x==0) return -1;
    if(x==2) return 1;
    for(int i=2;i<x;i++)
    {
        if(x%i==0)
            return -1;
    }
    return 1;
}