hdu 1047 Integer Inquiry

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner cin = new Scanner ( System.in );
BigInteger ans = BigInteger.valueOf( 0 );
BigInteger num;
int Case;
Case = cin.nextInt ( );
while ( cin.hasNext() ) {
num = cin.nextBigInteger ( );
if ( num.equals( BigInteger.valueOf( 0 ) ) ) {
System.out.println ( ans );
Case--;
ans = BigInteger.valueOf( 0 );
if ( Case != 0 ) System.out.println ( );
continue;
}
ans = ans.add ( num );
}
}
}