The following languages are additionally available for the problems from the contest

April Fools Day Contest 2014:

- Mysterious Language

Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ACM-ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

H. A + B Strikes Back

time limit per test

1 secondmemory limit per test

256 megabytesinput

standard inputoutput

standard outputA + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try?

Input

The input contains two integers *a* and *b* (0 ≤ *a*, *b* ≤ 10^{3}), separated by a single space.

Output

Output the sum of the given integers.

Examples

Input

5 14

Output

19

Input

381 492

Output

873

Codeforces (c) Copyright 2010-2017 Mike Mirzayanov

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