import java.math.BigDecimal;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        BigDecimal sum, num;

        int n;

        Scanner sc = new Scanner(System.in);

        n = sc.nextInt();

        for (int i = 1; i <= n; i++) {

            sum = new BigDecimal("0");

            String s;

            while (true) {

                s = sc.next();

                if (s.equals("0")) {
                    break;
                }

                num = new BigDecimal(s);

                sum = sum.add(num);
            }

            System.out.println(sum.stripTrailingZeros());

        }
    }
}