#include <stdio.h>

int main()
{
   FILE *fp;
   int tmp;
   int sum=0;

   fp = fopen("adunare.in", "r");
   if( fp != NULL ){
      while ( !feof(fp ) ){
        fscanf(fp,"%d \n",&tmp);
        sum+=tmp;
        }
      fclose(fp);
      fp=fopen("adunare.out","w");
      if( fp != NULL ){
        fprintf(fp,"%d ",sum);
        printf("%d", sum);
        fclose(fp);
      } else {
	return 2;
      }
   } else {
	return 1;
   }
   fflush(stdout);
   return 0;
}