#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#define MAX_SUM 2000000000
#define INPUT_FILE "adunare.in"
#define OUTPUT_FILE "adunare.out"

int main()
{
   int n, m;
   FILE *in = fopen(INPUT_FILE, "r");
   FILE *out = fopen(OUTPUT_FILE, "w");
   fscanf(in, "%d", &n);
   fscanf(in, "%d", &m);
   int s = n+m;
   if(s<MAX_SUM)
    fprintf(out, "%d", s);
   fclose(in);
   fclose(out);
   return 0;
}