Poj1503

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

public class Pone
{
	public static void main(String args[])
	{
		Scanner cin=new Scanner(System.in);
		//String a1=new String();
		int a1=0;
		String temp=new String();
		BigInteger a=BigInteger.valueOf(a1);
		while(true)
		{
			temp=cin.next();
			if(temp.equals("0")==true)
				break;
			BigInteger tp=new BigInteger(temp);
			a=a.add(tp);
		}
		System.out.println(a);
	}
}
1503就是计算几个大数之和