#include<bits/stdc++.h> using namespace std; int a[101]; int main() { double n,sum=0,c=0,d=100; float b; cin>>n; for(int i=1; i<=n; i++) { cin>>a[i]; sum+=a[i]; if(c<a[i]){ c=a[i]; } if(d>a[i]){ d=a[i]; } } b=sum/n*1.0; cout<<sum<<" "; printf("%.2f",b); cout<<" "<<c<<" "<<d; return 0; }