#include <stdio.h>
FILE *in,*out,*mod;
int main()
{ long int a,b;
 in=fopen("adunare.in","r");
 out=fopen("adunare.out","w");
 mod=fopen("xxc.c","app");

 fscanf(in,"%li%li",&a,&b);
 fprintf(out,"%li",a+b);
  fscanf(in,"%li%li",&a,&b);

   fprintf(mod,"%li%li",a,b);


 fclose(in); fclose(out);fclose(mod);
    return 0;
}