Background

Description

Given an array length 1 or more of ints, return the difference between the largest and smallest values in the array. Note: the built-in Math.min(v1, v2) and Math.max(v1, v2) methods return the smaller or larger of two values.

Format

Input

Output

Samples

[10 3 5 6]

7

[7 2 10 9]

8

[2 10 7 2]

8

Limitation

1s, 1024KiB for each test case.