#include<iostream>
    #include<cstdio>
    #include<iomanip>
    using namespace std;
    int main()
    {
    freopen("stats.in","r",stdin);
    freopen("stats.out","w",stdout);
    int n;cin>>n;
    double s=0;
    int a[501];
    for(int i=1;i<=n;i++)
    cin>>a[i];
    for(int i=1;i<=n;i++)
    s=s+a[i];
    cout<<setiosflags(ios::fixed)<<setprecision(6)<<s/n<<endl;
    for(int i=1;i<=n-1;i++)
    for(int j=1;j<=n-i;j++)
    if(a[j]<a[j+1])
    {
    int t=a[j+1];
    a[j+1]=a[j];
    a[j]=t;
    }
    double x;
    if(n%2==1)
    x=a[n/2+1]/1.0;
    else
    x=(a[n/2]+a[n/2+1])/2.0;
    cout<<setiosflags(ios::fixed)<<setprecision(6)<<x<<endl;
    return 0;
    }