#include<iostream>
#include<cmath>
using namespace std;
double a[200], b[55];
double mid, he, all = 0,minn = 134435;;
void rec(double start, double count, double sum,double k)
{
minn = min(abs(mid-sum), minn);
he = mid + minn;
if (count == k) return;
for (int i = start; i <= k; i++)
{
rec(i + 1, count + 1, sum + a[i],k);
rec(i + 1, count + 1, sum, k);
}
}
int main()
{
for (int j = 1; j <= 4; j++)
{
cin >> b[j];
}
for (int j = 1; j <= 4; j++)
{
double al = 0;
for (int z = 1; z <= b[j]; z++)
{
cin >> a[z];
al = a[z] + al;
}
mid = al / 2.0;
cout << mid << endl;
if (b[j] == 1) he = a[1];
else rec(1, 0, 0,b[j]);
cout << he << endl;
all = all + he;
}
cout <<all << endl;
return 0;
}