#include <stdio.h>

int main() {
    FILE *inputFile, *outputFile;
    int number1, number2, sum;

    inputFile = fopen("example.txt", "r");

    if (inputFile == NULL) {
        printf("Error opening the input file.\n");
        return 1;
    }

    if (fscanf(inputFile, "%d", &number1) != 1) {
        printf("Error reading the first number.\n");
        fclose(inputFile);
        return 1;
    }

    if (fscanf(inputFile, "%d", &number2) != 1) {
        printf("Error reading the second number.\n");
        fclose(inputFile);
        return 1;
    }

    fclose(inputFile);

    sum = number1 + number2;

    outputFile = fopen("adunare.out", "w");

    if (outputFile == NULL) {
        printf("Error opening the output file.\n");
        return 1;
    }

    fprintf(outputFile, "%d", sum);

    fclose(outputFile);

    printf("Sum successfully written to adunare.out.\n");

    return 0;
}