Is Even

**English**RU

Check if the given number is even or not. Your function should return True if the number is even, and False if the number is odd.

**Input: ** An int.

**Output: ** A bool.

**Example:**

is_even(2) == True is_even(5) == False is_even(0) == True

**How it’s used: **
*(math is used everywhere)*

**Precondition:**
*both given ints should be between -1000 and 1000*