#include <iostream> using namespace std; int main() { //freopen("intput.txt", "rt", stdin) int n, i, a, max = -2147000000, min = 2147000000; cin>>n; for(i=1; i<=n; i++){ cin>>a; if(a>max) max = a; if(a<min) min = a; } cout << max - min; return 0; }