#include<bits/stdc++.h>
using namespace std;
const int N=100000001;
int n; 
bool flag[N];
int pri[N],pn;
int main(){
	cin>>n;
	for(int i=2;i<=n;i++){
		if(flag[i]==0) pri[++pn]=i;
		for(int j=1;j<=pn&&j*pri[i]<=n;j++){
			flag[i*pri[j]]=1;
			if(i%pri[j]==0) break;
		}
	}
	for(int i=1;i<=pn;i++) cout<<pri[i]<<endl;
	return 0;
}