#include<bits/stdc++.h> using namespace std; int main(){ int a[101],n,m=0,max=-1,min=101; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; m+=a[i]; if(a[i]>max){ max=a[i]; } if(min>a[i]){ min=a[i]; } } cout<<m<<" "; double k=m/n; printf("%.2f ",k); cout<<max<<" "<<min; return 0; }