import java.util.Scanner;

public class Test {

    public static void main(String[] args) {
        long start = System.currentTimeMillis();
        Scanner scanner = new Scanner(System.in);

        long sum = 0;

        for (int i = 0; i < 10000; i++) {
            sum += scanner.nextInt();
        }

        System.out.println(sum);
        System.out.println(System.currentTimeMillis() - start);
    }

}