Jackson is doing his maths homework in addition and he needs your help!

Jackson's maths homework contains a lot of addition questions. Given two integers ~a~ and ~b~, can you help Jackson calculate the sum of ~a + b~?

Input

Your first and only line will contain two space-separated integers ~a~ and ~b~.

Output

A single line, containing the value of ~a + b~.

Constraints

• ~0 \le a, b \le 10^9~

Python Template

a, b = map(int, input().split())
# Continue your code here and print your final answer!

Example 1

Input

10 15

Output

25

Example 2

Input

100 100

Output

200

Example 3

Input

2004 0

Output

2004