A + B Again

A + B Again | JXNUOJ

translate ：

describe ：

our HDOJ There must be a lot A+B problem , Now here comes... Again .
Here are two for you Hexadecimal Integers , Your task is to calculate their sum , And print in hexadecimal .
Simple ？ Communicate ！

Input ：

The input contains several test cases , Please process to the end of the file .
Every case By two hexadecimal integers A and B Separated by spaces in a row .
A and B The length of is less than 15.

Output ：

For each test case , Print in hexadecimal on one line A and B The sum of .