#include<bits/stdc++.h>
using namespace std;
int main()
{
double a,b,c,d,m;
cin >>a>>b>>c>>d;
m = (a+b+c+d)/4;
if (a<b) a=b;
if (a<c) a=c;
if (a<d) a=d;
cout <<fixed<<setprecision(3) <<a <<endl <<m;
return 0;
}