A + B Problem II

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

21 2112233445566778899 998877665544332211

Sample Output

Case 1:1 + 2 = 3Case 2:112233445566778899 + 998877665544332211 = 1111111111111111110

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