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HDOJ 2057 A + B Again


Problem Description

There must be many A + B problems in our HDOJ , now a new one is coming.

Give you two hexadecimal integers , your task is to calculate the sum of them,and print it in hexadecimal too.

Easy ? AC it !

Input

The input contains several test cases, please process to the end of the file.

Each case consists of two hexadecimal integers A and B in a line seperated by a blank.

The length of A and B is less than 15.

Output

For each test case,print the sum of A and B in hexadecimal in one line.

Sample Input

+A -A

+1A 12

1A -9

-1A -12

1A -AA

Sample Output

0

2C

11

-2C

-90

import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
long str1 = sc.nextLong(16);
long str2 = sc.nextLong(16);
long a = str1+str2;
if(a<0){
//System.out.println(a);
a=-a;
//System.out.println(a);
System.out.println("-"+Long.toHexString(a).toUpperCase());
}else{
System.out.println(Long.toHexString(a).toUpperCase());
}
}
}

}



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