#include <stdio.h>
#include <stdlib.h>
int main(void){   
    
    int b,sum=0; 
    
    FILE *fp;
    
    fp = fopen("adunare.in","r");    
    
    if(fp==NULL){
                   printf("Error");
                   exit(0);
                   }
    
    while(fscanf(fp,"%d",&b)!=EOF)
         sum =  sum+b;  
    fclose(fp);  
    
    fp = fopen("adunare.out","w");   
    fprintf(fp, "%d", sum);                            
    fclose(fp);                                 
                   
    system("PAUSE");
    return 0;
    }