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

int main () 
{
long long a,b;
  ifstream myfile ("adunare.in");
  ofstream myfile1 ("adunare.out");
 
  //string a1,a2,b1,b2;
  if (myfile.is_open())
  {
  
     myfile>>a>>b;
       
  
  myfile.close();
} else cout << "Unable to open file";
//cout<<a<<" "<<b;
 
if (myfile1.is_open())
   {
        //cout<<a<<endl;
       // cout<<b;
        myfile1<<a+b<<endl;
              
   }
 
  return 0;
}