HDU - 2057 A + B Again

 

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 <cstdio>#include <cmath>#include <cstdlib>int main(){    long long int x, y;    while(~scanf("%llx %llx", &x, &y)){        if(x+y < 0) printf("-%llX\n", -(x+y));        else printf("%llX\n", x+y);    }    return 0;}