#include <stdio.h> int cmp(const void *a, const void *b){ return *(int *)a - *(int *)b; } int main() { int n; scanf("%d", &n); int shuzu[n]; for (int i = 0; i < n; i++){ int j; scanf("%d", &j); shuzu[i] = j; } qsort(shuzu, n, sizeof(int), cmp); int max = shuzu[n - 1]; int min = shuzu[0]; printf("%d", max - min); return 0; }