#include <iostream> //zbir i prosek
using namespace std;
int main(){
    int n;
   cin>>n;
   int a[n];
   int zbir=0;
   int prosek=0;
   int brojac=0;
   for(int i=0; i<n; i++){
     cin>>a[i];
     if(a[i]%3==0){
         zbir+=a[i];
         brojac+=1;

   }
   }
   prosek=zbir/brojac;
   cout<<prosek<<" "<<zbir;
   return 0;
}