#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <stack>
#include <queue>
#include <set>
#include <vector>
#include <string>
#include <string.h>
using namespace std;

const int MAX_N=20000;
int n;

int main(){
	cin >> n;
	
	cout << 2 << " " << n-2 << endl;
	return 0;
}