A + B Again 2057 有符号的64进位的运算

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

 

Author

linle

 

Source

校庆杯Warm Up

 

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 #include<stdio.h>
 int main()
 {
    long long int x,y,z;
     while(~scanf("%llx%llx",&x,&y))
     {
     (x+y>=)?printf("%llX\n",x+y):printf("-%llX\n",-(x+y));
     }
     return ;
 }