#include<iostream> using namespace std; int main() { int n,maxn=-10000,minn=10000; cin>>n; int a[n]; for(int i=0;i<n;i++){ cin>>a[i]; } for(int i=0;i<n;i++){ maxn=max(maxn,a[i]); minn=min(minn,a[i]); } cout<<maxn-minn; }