1 import java.lang.*;
2 import java.util.*;
3 import java.text.*;
4 import java.math.*;
5 import java.io.*;
6 class Main
7 {
8 public static void main(String []args)
9 {
10 int n;
11 BigInteger a1,a2;
12 Scanner cin=new Scanner(System.in);
13 while(cin.hasNext())
14 {
15 n=cin.nextInt();
16 while(n--!=0)
17 {
18 a2=BigInteger.valueOf(0);
19 a1=cin.nextBigInteger();
20 while(a1.compareTo(BigInteger.valueOf(0))!=0)
21 {
22 a2=a2.add(a1);
23 a1=cin.nextBigInteger();
24 }
25 System.out.println(a2);
26 if(n!=0)System.out.println();
27 }
28 }
29 }
30 }
