#include<fsteam.h>
#include<iostream.h>
int main()
{fstream f("adunare.txt",ios::in);
 fstream g("adunare.txt",ios::out);
 int a,b;
 f>>a>>b;
 int c;
 c=a+b;
 g<<c;
 f.close();
 g.close();
 return 0;
}