#include <bits/stdc++.h> using namespace std; int main() { int n,a[155],s=0; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; } for(int i=1;i<=n;i++){ s=s+a[i]; } cout<<s<<endl; cout<<fixed<<setprecision(2)<<1.0*s/n<<endl; sort(a+1,a+n+1,greater<int>()); for(int i=1;i<=n;i++){ cout<<a[i]<<" "; } return 0; }