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 121A -9-1A -121A -AA

 

Sample Output

02C11-2C-90

 

Author

linle

 

Source

校庆杯Warm Up

 

 

计算机能够处理16进制数

代码如下；

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
 __int64 a,b;
 while(~scanf("%I64X%I64X",&a,&b))
 {
  if(a+b<0)
  printf("-%I64X\n",-a-b);
  else
  printf("%I64X\n",a+b);
 }
 return 0;
}