import java.io.File;
import java.io.PrintWriter;
import java.util.Scanner;

public class Adunare {

    public static void main(String args[]) {

        PrintWriter out = null;
        Scanner scanner = null;
        try {
            scanner = new Scanner(new File("adunare.in"));
            int sum = 0;
            while (scanner.hasNextLine()) {
                sum += Integer.parseInt(scanner.nextLine());

            }
            if(sum>2000000000)
            {
                sum = 2000000000;
            }

            out = new PrintWriter("adunare.out");
            out.print(sum);

        } catch (Exception e) {

        } finally {
            if(scanner != null) {
                scanner.close();
            }

            if(out!=null) {
                out.close();
            }
        }
    }
}