A+B for Input-Output Practice (III)

Problem Description

Your task is to Calculate a + b.

 

Input

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.

 

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input. 

 

Sample Input

 

Sample Output

 

Author

lcy

 

import java.math.BigInteger;
import java.util.Scanner;
public class Main//注意刷题时的java格式
{
    public static void main(String[] args)
    { 
        BigInteger a,b,d;
        String c = "0";
        d = new BigInteger(c);//将c转化为大数形式，用d保存
        Scanner in = new Scanner(System.in);
        while(in.hasNextBigInteger())
        {
            a = in.nextBigInteger();
            b = in.nextBigInteger();
            if(a.compareTo(d) == 0 && b.compareTo(d) == 0 )//注意用一个大数类自带方法来判断两个大数是否相等
                break;
            System.out.println(a.add(b));
        }
    }
}