package org.example;

import java.io.*;

public class Main {
    public static void main(String[] args) {
        try {
            Pair<Integer, Integer> numbers = readNumbersFromFile();
            int sum = numbers.a() + numbers.b();
            writeResultToFile(sum);
        } catch (IOException e) {
            System.err.println("I/O error: " + e.getMessage());
        }
    }

    private static Pair<Integer, Integer> readNumbersFromFile() throws IOException {
        InputStream inputStream = Main.class.getClassLoader().getResourceAsStream("adunare.in");

        if (inputStream == null) {
            throw new FileNotFoundException("Resource file adunare.in not found!");
        }

        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

        int a = Integer.parseInt(reader.readLine());
        int b = Integer.parseInt(reader.readLine());

        reader.close();

        return new Pair<>(a, b);
    }

    private static void writeResultToFile(int sum) throws IOException {
        BufferedWriter writer = new BufferedWriter(new FileWriter("adunare.out"));
        writer.write(String.valueOf(sum));
        writer.newLine();
        writer.close();
    }
}