#include<iostream> using namespace std; int main(){ int a; cin >> a; int b[a], W = 0, e = 10000; for (int i = 0; i < a; i++){ cin >> b[i]; } for (int c = 0; c < a; c++) { if (b[c] > W) W = b[c]; if (b[c] < e) e = b[c]; } cout << W - e; return 0; }