Extreme Range

Given an integer n and n integers a_i, calculate the range defined as the difference between the maximum and minimum values. Mathematically, the range is given by:

\(\text{range} = \max(a_i) - \min(a_i)\)

inputFormat

The first line contains an integer \(n\) (where \(1 \le n \le 10^5\)). The second line contains \(n\) space-separated integers \(a_i\).

outputFormat

Output a single integer representing the range of the given numbers.

sample

5
-1 0 1 2 3

4