HDU 1002 A + B Problem II (JAVA大数)

Problem Description
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.


Input
The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.


Output
For each test case, you should output two lines. The first line is "Case #:", # means the number of the test case. The second line is the an equation "A + B = Sum", Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.


Sample Input

2
1 2
112233445566778899 998877665544332211



Sample Output

Case 1:
1 + 2 = 3

Case 2:

112233445566778899 + 998877665544332211 = 1111111111111111110

import java.math.BigInteger;import java.util.Scanner; public class Main {     public static void main(String[] args) {        BigInteger a, b;        int T;        Scanner in = new Scanner(System.in);        T = in.nextInt();        for (int i = 1; i <= T; ++i) {            System.out.println("Case" + " " + i + ":");            a = in.nextBigInteger();            b = in.nextBigInteger();            if (i < T) {                System.out.println(a + " + " + b + " = " + a.add(b) );                System.out.println();            } else {                System.out.println(a + " + " + b + " = " + a.add(b));            }        }    }}