#include #define REP(i, n) for(int i = 0;i < n;i++) #define ll long long using namespace std; //typedef vectorvec; //typedef vectorvec; //typedef vector mat; typedef pair P; typedef pair LP; const int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1}; const int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1}; const int INF = 1000000000; const ll LINF = 1000000000000000000;//1e18 const ll MOD = 1000000007; const double PI = acos(-1.0); const double EPS = 1e-10; template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline void add(T &a, T b){a = ((a+b) % MOD + MOD) % MOD;}; vector divisor(ll n){ vector res; for(ll i=1; i*i <= n; i++){ if(n % i == 0){ res.push_back(i); if(i != n / i) res.push_back(n / i); } } return res; } int main(){ cin.tie(0); ios::sync_with_stdio(false); int X; cin >> X; vector> ans; int ma = INF; for(int i=X/2;i>=1;i--){ auto res1 = divisor(i); auto res2 = divisor(X-i); int f = abs((i - (int)res1.size()) - (X-i - (int)res2.size())); if(f == ma){ ans.emplace_back(i, X-i); ans.emplace_back(X-i, X); } else if(f < ma){ ma = f; ans = vector> (); ans.emplace_back(i, X-i); ans.emplace_back(X-i, i); } } //cout << ma << endl; sort(ans.begin(), ans.end()); for(auto x : ans) cout << x.first << " " << x.second << endl; }