#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

int main(){
  ll N; cin >> N;
  ll M = 0;
  for(int i = 0; i < 1e7; i++){
    N++; M--;
    string n = to_string(N);
    string m = to_string(M);
    if(n.find("7") == -1 and m.find("7") == -1){
      cout << N << " " << M << endl;
      return 0;
    }
  }
  cout << -1 << endl;
}