#include<iostream> #include<cstdio> using namespace std; int main(){ int n; double sc,s=0,mx=-1,mn=101; cin>>n; for(int i=n;i>0;i--){ cin>>sc; s+=sc; if(sc>mx) mx=sc; if(sc<mn) mn=sc; } cout<<s<<" "; printf("%.2lf",s/n); cout<<" "<<mx<<" "<<mn; return 0; }