import java.util.Scanner; import java.util.Arrays; public class Main { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); int cha=0; int[] array=new int[n]; for(int i=0;i<n;i++) { array[i]=sc.nextInt(); } Arrays.sort(array); System.out.println(array[n-1]-array[0]); } }