1 import java.util.*;
2 import java.math.*;
3 import java.io.*;
4
5 public class Hdu1047{提交时要改为Main
6 public static void main(String args[]){
7 int n, flag=0;
8 BigInteger a, sum;
9
10 Scanner cin = new Scanner (System.in);
11 n = cin.nextInt();
12
13 for(int i=0; i<n; i++){
14 if(flag==1)
15 System.out.println();
16 flag = 1;
17
18 sum = BigInteger.ZERO;
19 while(cin.hasNext()){
20
21 a = cin.nextBigInteger();
22 if(a.intValue() == 0)
23 break;
24 sum = sum.add(a);
25 }
26
27 System.out.println(sum);
28 }
29 }
30 }
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