using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
static class Program{
	const int mod=(int)1e9+7;
	static void Main(){
		Sc sc=new Sc();
		var n=sc.I;
		DateTime st=DateTime.Now;
		var li=new List<Tuple<int,int>>();
		int g=n;
		for(int i = (n+1)/2;i<n&&(DateTime.Now-st).TotalMilliseconds<1940;i++) {
			if(n-i==i){
				g=0;
				li.Clear();
				li.Add(Tuple.Create(i,n-i));
				continue;
			}
			var pf=new Pf(i);
			int p=1;
			pf.Get((k,v)=>{p*=v+1;});
			int c=i-p;
			pf=new Pf(n-i);
			p=1;
			pf.Get((k,v)=>{p*=v+1;});
			c=Abs(c-n+i+p);
			if(g==c){
				li.Add(Tuple.Create(i,n-i));
				li.Add(Tuple.Create(n-i,i));
			}
			else if(g>c){
				li.Clear();
				li.Add(Tuple.Create(i,n-i));
				li.Add(Tuple.Create(n-i,i));
				g=c;
			}
		}
		li.Sort((u,v)=>u.Item1-v.Item1);
		StringBuilder sb=new StringBuilder();
		for(int i = 0;i<li.Count;i++) {
			sb.Append(li[i].Item1).Append(" ").Append(li[i].Item2).Append("\n");
		}
		Console.Write(sb);
	}
}
public class Pf{
	public Dictionary<long,int> hs=new Dictionary<long,int>();
	public Pf(long n){
		if(n%2==0){
			int p=0;
			while((n&1)==0){n>>=1;p++;}
			hs.Add(2,p);
		}
		var q=(int)Sqrt(n)+1;
		for(int i=3;n!=1&&i<q;i+=2){
			if(n%i==0){
				int p=0;
				while(n%i==0){n/=i;p++;}
				q=(int)Sqrt(n)+1;
				hs.Add(i,p);
			}
		}
		if(n!=1){hs.Add(n,1);}
	}
	public void Get(Action<long,int> f){
		foreach(var e in hs){f(e.Key,e.Value);}
	}
}
public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);}
	public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);}
	public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);}
	public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
	public double[] Da3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),double.Parse);}
	public double[] Da3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),double.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
}