ex119

#include<iostream>
using namespace std;
int main()
 {
  int nr=0,s=0,x,y;
  cin>>x>>y;
  if(x%2==0)
   {
    s=2*x;
    nr=2;
   }
  while(x!=y)
   {
    if(y%2==0)
     {
      s=s+y;
      nr++;
     }
     cin>>y;
   }
  cout<<float s/nr<<" "<<nr;
  }