hdu 1047 java水过

import java.io.*;
import java.util.*;
import java.math.*;
public class Main {
   public static void main(String[] args)
   {
	 Scanner cin=new Scanner(System.in);
	 int i,n;
	 BigInteger a,b;
	 n=cin.nextInt();
	 for(i=0;i<n;i++)
	 {
	  if(i!=0)
	  System.out.println();
	  b=BigInteger.ZERO;
	  while(cin.hasNextBigInteger())
	  {
	   a=cin.nextBigInteger();
	   if(a.intValue()==0) break;
	   b=b.add(a);
	  }
	  System.out.println(b);
	  
	 }
	 }
}