Both Zero, Negative or Positive

Write a function that returns true if both numbers are:

• Smaller than 0, OR ...
• Greater than 0, OR ...
• Exactly 0

Otherwise, return false.

Examples

both(6, 2) ➞ true

both(0, 0) ➞ true

both(-1, 2) ➞ false

both(0, 2) ➞ false

Notes

Inputs will always be two numbers.