#include <bits/stdc++.h>   using namespace std;   const int MID = 1e5;   const int MAX = 1e9;   int main() {     int n;     cin >> n;     if (n % 2) {       cout << n - 9 <<     << 9;     } else {       cout << n - 8 <<     << 8;     }     return 0;   }   