Statement

You are given two numbers

*A*and

*B*. Calculate their sum.

Input:

The first line of input contains integers

*A*and

*B*.

Output:

Your output should contain only one line, sum of numbers

*A*and

*B*.

Constraints:

- 3 ≤
*A*,*B*≤ 10^{9}

Example input:

2 3

Example output:

5

Time and memory limit:

- 0.1 second
- 4MB