Sum of Two Integers

You are given two integers (a) and (b) separated by a space. Your task is to compute and output their sum, i.e. $$a+b$$.

Constraints: (-10^9 \le a, b \le 10^9).

inputFormat

The input consists of a single line containing two space-separated integers.

outputFormat

Output a single integer which is the sum of the two given integers.

sample

1 2

3