Sum of Two Integers

Given two integers a and b, return the sum of the two integers.

Example 1:

Input: a = 1, b = 2
Output: 3
Explanation: 1 + 2 = 3

Example 2:

Input: a = -1, b = 1
Output: 0
Explanation: -1 + 1 = 0

Constraints:

• -100 <= a, b <= 100