A + B

Given two integers A and B in an unusual presentation: the number divided into groups of three digits, starting with the discharge of units with a comma. Your task is to find their sum and displays the result in the usual decimal form of normal output.

Input

The input data consist of multiple data sets. Each test case is filed in a separate line, contains two integers A and B (|A|, |B| < 10^9) and a number separated by a space.

Output

For each test case print the results on a separate line in the normal form of output.

Examples