#include <stdio.h> int main() { int num = 0; int min = 100; int max = 0; while (scanf("%d", &num) != EOF) { int temp = 0; for (int i = 0; i < num; i++) { scanf("%d ",&temp); if (min > temp) { min = temp; } if (max < temp) { max = temp; } } printf("%d\n",max - min); } return 0; }