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

int main() {
	string line;
	int a = 0,b = 0,sum;
	ifstream myfile ("adunare.in");
	if (myfile.is_open())
	{
		myfile>>a;
		myfile>>b;
		
		myfile.close();
	}

	else cout << "Unable to open file"; 
	
	sum = a + b;
	ofstream outfile ("adunare.out");
	if (outfile.is_open())
	{
		outfile<<sum;
		outfile.close();
	}
  else cout << "Unable to open file";
  return 0;
}

/*
// writing on a text file
#include <iostream>
#include <fstream>
using namespace std;

int main () {
  ofstream myfile ("example.txt");
  if (myfile.is_open())
  {
    myfile << "This is a line.\n";
    myfile << "This is another line.\n";
    myfile.close();
  }
  else cout << "Unable to open file";
  return 0;
}

// reading a text file
#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main () {
  string line;
  ifstream myfile ("example.txt");
  if (myfile.is_open())
  {
    while ( getline (myfile,line) )
    {
      cout << line << '\n';
    }
    myfile.close();
  }

  else cout << "Unable to open file"; 

  return 0;
}
*/