Package for this problem was not updated by the problem writer or Codeforces administration after we’ve upgraded the judging servers. To adjust the time limit constraint, solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then value 800 ms will be displayed and used to determine the verdict.

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

Unknown Language Round #3:

- Pike 7.8

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C. A+B

time limit per test

2 secondsmemory limit per test

64 megabytesinput

standard inputoutput

standard outputBijan is new to programming. He learned recently that programmers do not code every bit of their apps from scratch.

For example they never write a code to sum two integers, because their languages have the ability to do the sum. But can they use it? Can an experienced coder who has attended more than 100 contests, sum two integers?

Bijan is not sure about this. What's your opinion?

Input

You are given two integers *a* and *b*, one per line (1 ≤ *a*, *b* < 10^{500}). These numbers will not have any leading zeros.

Output

Write sum of the two integers. Do not put any leading zeros.

Examples

Input

2

3

Output

5

Input

1390

2011

Output

3401

Input

12345

54321

Output

66666

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