A + B Strikes Back

Time Limit: 1 second

Memory Limit: 256 megabytes

Description

A + 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 ≤ 103), separated by a single space.

Output

Output the sum of the given integers.

Sample Input

Input
5 14
Output
19
Input
381 492
Output
873

Sample Output

None

Hint

None

Source

None

提交代码