#include<iostream> using namespace std; int a[105],n,d,big =-1,small = 101; double c; int main(){ cin>>n; for(int b = 1;b<=n;b++){ cin>>a[b]; } for(int b = 1;b<=n;b++){ d = d+a[b]; } c = d*1.00/n; for(int b = 1;b<=n;b++){ if(big<a[b]){ big = a[b]; } if(small>a[b]){ small = a[b]; } } cout<<d<<' '; printf("%.2lf",c); cout<<' '<<big<<' '<<small; return 0; }