void firstline() {
    Scanner in = new Scanner(System.in);
    out.printf("");
    String Line = in.nextLine();
    Scanner line = new Scanner(Line);

    int somcijfers = 0;
    while(line.hasNext()) {
        somcijfers += line.nextInt();
    }
    out.printf("%d", somcijfers);

    }

void start() {
    firstline();
}

String s = "Piet van Gogh_5 6 7 4 5 6";
String vals = s.substring(s.lastIndexOf('_') + 1);
String[] nums = vals.split(" ");

try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
    String line = br.readLine();
    String[] splitLine = line.split("_");
    String[] numbers = splitLine[1].split(" ");
    Integer sum = Stream.of(numbers).mapToInt(Integer::valueOf).sum();
    System.out.println(sum);
} catch (IOException e) {
    e.printStackTrace();
}