### ** Addition of 2 numbers**

Addition
Wallaby is learning about math. He would like add 2 numbers. Please help him!

### Input Format

Input consists of 2 integers, a and b

### Output Format

Output 1 integer, the sum of a and b.

### Subtasks

- Subtask 1: Sample testcases (0 points)
- Subtask 2: a,b ≤ 10
^{9} (36 points)
- Subtask 3: a,b ≤ 10
^{18} (64 points)

### Sample testcases

Input 1:

4 5

Output 1:

9