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());
 
        }
    }
}