#include <iostream> #include <cstdio> using namespace std; int main(){ int n,a[101]={},sum=0,max=0,min=0; double p; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; sum+=a[i]; max=min=a[1]; if(a[i]>max){ max=a[i]; } if(a[i]<min){ min=a[i]; } } p=(double)sum/n; cout<<sum<<" "; printf("%.2f ",p); cout<<max<<" "<<min<<" "<<endl; return 0; }