#include<iostream>
#include<vector>
#include<utility>
signed main(){
  constexpr int maxn = 2e6;
  std::vector<int> divnum(maxn+1);
  for(int i=1;i<=maxn;++i){
    divnum[i]++;
    for(int j=i+i;j<=maxn;j+=i)divnum[j]++;
  }
  int n;
  std::cin>>n;
  std::vector<std::pair<int,int>> ans_set;
  int ans_val = 1<<28;
  for(int i=1;i<n;++i){
    int j = n-i;
    auto f = [&](auto n){return n-divnum[n];};
    int tmp = std::abs(f(i)-f(j));
    if(ans_val==tmp)ans_set.emplace_back(i,j);
    if(ans_val>tmp){
      ans_set.clear();
      ans_set.emplace_back(i,j);
      ans_val = tmp;
    }
  }
  for(auto [i,j]:ans_set)std::cout<<i<<" "<<j<<std::endl;
}