#include<bits/stdc++.h> using namespace std; int main() { int n,a[101],sum=0,maxn=0,minn=101; double pjf=0; cin>>n; for(int i=0;i<n;i++){ cin>>a[i]; sum+=a[i]; } pjf=sum*1.0/n; for(int i=0;i<n;i++){ if(a[i]>maxn) maxn=a[i]; if(a[i]<minn) minn=a[i]; } cout<<sum<<" "; printf("%.2lf ",pjf); cout<<maxn<<" "<<minn; return 0; }