Mubashir was walking through a straight street with exactly n identical houses on both sides. House numbers in the street look like this:
1 | | 6
3 | | 4
5 | | 2
He noticed that Even numbered houses increase on the right while Odd numbered houses decrease on the left.
Create a function that takes a house number house and length of the street n and returns the house number on the opposite side.
opposite_house(1, 3) ➞ 6
opposite_house(2, 3) ➞ 5
opposite_house(3, 5) ➞ 8
N/A