超坑A+B again hdu2057

A + B Again

Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 34138    Accepted Submission(s): 13848

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

 

#include <stdio.h>
int main()
{
    long long a,b,sum;
    while(scanf("%llx %llx",&a,&b) != EOF)
    {
        sum=a+b;
        if(sum>=0)
        printf("%llX\n",sum);   //X要大写
        else
        printf("-%llX\n",-sum);
    }
    return 0;
}