Span Of Array

easy

1. You are given a number n, representing the count of elements.
2. You are given n numbers.
3. You are required to find the span of input. Span is defined as difference of maximum value and minimum value.

Input Format

A number n n1 n2 .. n number of elements

Output Format

A number representing max - min

Constraints

1 &lt;= n &lt;= 10^4
0 &lt;= n1, n2
 .. n elements &lt;= 10 ^9

Notice

Try First, Check Solution later

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Example

Input

Output

Find Element In An Array