#include<bits/stdc++.h> using namespace std; int a[108]; int main(){ int n,sum=0; double s; cin>>n; for(int i=0;i<n;i++){ cin>>a[i]; sum+=i; } s=sum*1.0/n; int max=a[1],min=a[1]; for(int i=2;i<=n;i++){ if(a[i]>max){ max=a[i] } if(a[i]<min){ min=a[i] } } cout<<" "<<sum<<" "<<s<<" "<<max<<" "<<min; return 0; }