import java.util.*;
import java.io.*;

public class Main {
	public static void main(String[] args) throws IOException {
		try{
			PrintWriter writer = new PrintWriter("adunare.out","UTF-8");
			Scanner scanner = new Scanner(new File(args[0]));
			long sum = 0;

			while (scanner.hasNextInt()){
				sum += scanner.nextInt();
			}

			writer.println(sum);
			writer.close();

		} catch (Exception e){
                        e.printStackTrace();
                }
	}
}