HDOJ 1002

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.
           

code

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

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        for(int i = 0; i < a; i++) {
            BigInteger x = in.nextBigInteger();
            BigInteger y = in.nextBigInteger();
            System.out.println("Case " + (i+1) + ":");
            System.out.println(x+" + "+y+" = "+x.add(y));
            if(i != a-1) {
                System.out.println();
            }
        }
    }
    
}