#include<iostream>
#include<fstream>
#include<string>
using namespace std;


void main(){

   ofstream f;
   f.open("x.txt");
   f << 12 << endl;
   f << 17 << endl;
   f.close();
   
   ifstream fi;
   fi.open("x.txt");
   char x[80];
   fi.getline(x,80);
   while(!fi.eof()){
      cout << x << endl;
      fi.getline(x,80);
   }
   
   fi.close();
}