BIG Integer

Problem Statement

In this problem you have to add and multiply huge numbers! These numbers are so big that you can't contain them in any ordinary data types like long integer.

Use the power of Java's BigInteger class and solve this problem.

Input Format

There will be two lines containing two numbers, a and b. The numbers are non-negative and can have maximum 200 digits.

Output Format

Output two lines. The first line should contain a+b, and the second line should contain a×b. Don't print any leading zeros.

Sample Input

1234
20

Sample Output

1254
24680

Explanation

1234+20=1254
1234*20=24680

import java.io.*;

import java.util.*;

import java.math.*;

public class Solution {

    static BigDecimal add(BigDecimal a,BigDecimal b){return a.add(b);}

                static BigDecimal multiply(BigDecimal a,BigDecimal b){return a.multiply(b);          }

    public static void main(String[] args) {

        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */

        Scanner scan=new Scanner(System.in);

        String str1=scan.next();

        String str2=scan.next();

        System.out.println(add(new BigDecimal(str1),new BigDecimal(str2)));

        System.out.println(multiply(new BigDecimal(str1),new BigDecimal(str2)));

    }

}

Input

Str1=”12312312312312";

str2="2342342342342342";

Output:

2354654654654654

28839650461271347136325514704

 Score: 10.00

Test Case #0:  0.08s

Test Case #1:  0.08s

Test Case #2:  0.09s

Test Case #3:  0.08s

Test Case #4:  0.09s

Test Case #5:  0.08s

Test Case #6:  0.08s

Test Case #7:  0.08s

Test Case #8:  0.09s