# include<iostream> using namespace std; int main(){ int n,max=-9999,min=9999; cin>>n; int a[n]; for(int i=0;i<n;i++){ cin>>a[i]; if(max<a[i]){ max=a[i]; }else if(min>a[i]){ min=a[i]; } } cout<<max-min; return 0; }