#include<stdio.h>

int main()
{
    FILE *fin, *fout;
    fin=fopen("a+b.in.txt","r");
    int a,b;
    if (!fin)
        {
           printf("Nu s-a gasit fisierul a+b.in\n");
           return 1;
        }
    fscanf(fin,"%d %d", &a, &b);
    fout=fopen("a+b.out.txt","w");
    fprintf(fout,"%d", a+b);
    fflush(stdout);
    fclose(fin);
    fclose(fout);
    return 0;
}