poj-2756-Autumn is a Genius

Description
Jiajia and Wind have a very cute daughter called Autumn. She is so clever that she can do integer additions when she was just 2 years old! Since a lot of people suspect that Autumn may make mistakes, please write a program to prove that Autumn is a real genius.

Input
The first line contains a single integer T, the number of test cases. The following lines contain 2 integers A, B(A, B < 32768) each. The size of input will not exceed 50K.

Output
The output should contain T lines, each with a single integer, representing the corresponding sum.

Sample Input

1
1 2

Sample Output

3

Hint
There may be ‘+’ before the non-negative number!

大数相加，直接java

 import java.util.Scanner;  
    import java.math.BigDecimal;  
    public class Main{  
        public static void main(String[] args){  
            Scanner in=new Scanner(System.in);  
            int n=in.nextInt();  
            for(int i=1;i<=n;i++){  
                BigDecimal a=in.nextBigDecimal();  
                BigDecimal b=in.nextBigDecimal();  
                System.out.println(a.add(b));  
            }  
        }  
    }