9bac 46

#include <iostream>

using namespace std;

int main() {

unsigned x,S,nrp,n;
float ma;

cin>>x;
if (x%2==0)
{
    S=x;
    nrp=1;
}
else
{
    S=0;nrp=0;
}
do
{
    cin>>n;
    if (n%2==0)
    {
        S+=n;
        nrp++;
    }

}while (n!=x);
ma=(float)S/(float)nrp;
cout<<ma<<" "<<nrp;
 return 0;
}