Problem Description

There must be many $A + B$ problems in our OJ , 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.

Samples

+A -A
+1A 12
1A -9
-1A -12
1A -AA

0
2C
11
-2C
-90