#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <stdio.h>

int main()
{
    FILE* fi = fopen("adunare.in.txt", "r");
    FILE* fp = fopen("adunare.out.txt", "r+");
    int sum = 0;
    char buffer[30];
    while (fgets(buffer, 30, fi))
    {
        sum = sum + (atoi(buffer));
    }

    fprintf(fp, "%d", sum );
    fclose(fp);
    return 0;
}